Wireless Security Systems SA 2026 - Complete Pricing Guide

How Wireless Security Systems Work

A wireless security system replaces the physical cable connections between sensors and the central control panel with a radio frequency communication link. Each sensor contains a battery-powered radio transmitter that sends encrypted signals to a receiver in the control panel when the sensor is activated, when its tamper protection is triggered, or when its battery reaches a low-charge threshold. The control panel evaluates incoming signals from all sensors and decides whether to trigger an alarm, notify a monitoring centre, or log the event without triggering an alert.

The practical difference from a hardwired system is that no physical cable needs to be routed between each sensor and the panel. This eliminates the most labour-intensive and disruptive part of traditional alarm installation, particularly in established homes where drilling through walls, routing through roof spaces, and patching plasterwork represents significant cost and disruption. In a wireless system, sensors are fixed to door frames, window reveals, walls, and ceilings using adhesive mounts or small screws, and the installation typically leaves no visible cabling whatsoever.

The sensors themselves are battery-powered, which eliminates the need for a power cable at each sensor location but introduces the requirement for periodic battery replacement. Quality professional wireless sensors use efficient low-power radio protocols that extend battery life to 3 to 5 years between replacements, and the control panel provides advance warning when any sensor battery approaches end of life. This predictable maintenance schedule is well manageable for SA homeowners and does not represent a significant ongoing burden when compared to the benefits of the wireless installation approach.

Wireless systems in the professional grade use two-way communication between the panel and each sensor, allowing the panel to verify that each sensor is communicating correctly and to send configuration commands back to the sensor. This bidirectional communication architecture enables features including sensor status checks, zone programming changes, and firmware updates delivered over the air without a technician visit for routine configuration changes.

The control panel itself in a wireless system is typically mains-powered with a battery backup, providing continued operation during power outages for a period of four to eight hours depending on the panel model. The communication to the monitoring centre uses an IP connection (NBN) as the primary path and a 4G cellular connection as the automatic backup, ensuring monitoring continuity even if the NBN is disrupted. This dual-path communication architecture is standard in quality Grade 2 wireless installations and should be confirmed before signing any installation agreement.

Professional Wireless vs DIY Consumer Systems

The wireless security market in SA divides clearly into two categories: professional-grade systems installed by licensed SA security companies, and consumer-grade DIY systems available at major retailers. Understanding the genuine differences between these categories helps SA homeowners make a purchasing decision based on actual performance requirements rather than assumptions about equivalence.

Professional wireless systems use dedicated alarm industry radio frequencies (typically 433MHz, 868MHz, or 915MHz) that operate independently of the home's Wi-Fi network and are not affected by Wi-Fi congestion, router reboots, or internet outages. The radio protocol used is encrypted and proprietary to the manufacturer's ecosystem, which means the sensors can only communicate with that manufacturer's panels, but also means the communication cannot be decoded or jammed by consumer-grade electronic equipment. Professional systems meet the detection and communication requirements of AS 2201.1 Grade 2, providing a documented benchmark for performance. The sensors include anti-tamper protection that triggers an alarm if the sensor is opened or removed from its mounting. Batteries last 3 to 5 years and replacement is a routine maintenance task.

Consumer DIY systems from Ring Alarm, SimpliSafe, Swann, and similar brands use Wi-Fi or Z-Wave radio for sensor communication. They are designed for self-installation, use simple app-based setup, and provide a useful entry level of security for low-risk applications. The limitations are meaningful for anyone treating these systems as equivalent to a professional installation: Wi-Fi dependency means the system loses sensor communication if the router reboots or the internet drops; Wi-Fi signal strength varies across a property and can create dead zones for sensors in remote rooms or outbuildings; the monitoring services available through consumer brands are generally not AS/NZS 2201.5 compliant Grade 2 monitoring; and the system does not meet AS 2201.1 Grade 2 requirements for tamper detection and backup power. For rental properties, holiday homes used as low-risk supplementary security, or budget-constrained situations, consumer systems are a reasonable choice. They should not be treated as equivalent to a professional Grade 2 system for insurance or high-security applications.

One practical consideration for SA homeowners comparing costs is that a DIY consumer system appears cheaper at the point of purchase but the full cost over three years includes the equipment, any subscription monitoring fees (Ring Alarm's professional monitoring costs $10 to $25 USD per month depending on the plan), and the absence of insurance discounts that a professionally monitored Grade 2 system may qualify for. A three-year total cost comparison that includes all these elements often narrows the gap between the two categories considerably.

Radio Technology and Frequency Explained

The radio frequency and protocol used by a wireless security system is one of the most technically significant specifications that most SA homeowners and even some security salespeople underestimate. Understanding the key differences helps you evaluate installer recommendations and identify systems that may have reliability problems under real-world SA conditions. Standards Australia publishes AS 2201.1, the intruder alarm system standard, which classifies systems from Grade 1 through Grade 4 and sets the detection, communication, and tamper protection requirements that determine whether a wireless system delivers genuine security value.

868MHz professional alarm radio is the dominant frequency for premium professional wireless alarm systems in Australia in 2026. The 868MHz frequency band is specifically allocated for security and safety applications in Australia, meaning the spectrum is relatively uncongested compared to the 2.4GHz and 5GHz bands used by Wi-Fi. The frequency provides good signal penetration through standard residential construction materials including brick, concrete, and plasterboard, delivering reliable communication across typical SA residential properties without requiring repeaters. Ajax Systems, the system most rapidly gaining SA installer adoption, uses 868MHz with a proprietary Jeweller protocol that provides bidirectional communication, encrypted signals, and anti-jamming features. The primary limitation of 868MHz systems is that sensors must be from the same manufacturer ecosystem, as the protocol is proprietary.

433MHz is a longer-established wireless alarm frequency used by older systems from Hills Reliance, Paradox, and Crow. The frequency provides good range and wall penetration but the protocol in older systems is not always bidirectional or encrypted to modern standards. Some 433MHz sensors are susceptible to replay attacks, where an electronic device records and replays the sensor's radio signal to bypass the alarm, a vulnerability that newer 868MHz encrypted systems specifically address. SA installers proposing 433MHz wireless systems should confirm that the sensors use rolling code or encrypted communication rather than fixed code transmission.

Z-Wave is used by some consumer and semi-professional wireless alarm products, operating at 919.8MHz in Australia. Z-Wave forms a mesh network where each device can relay signals from other devices, theoretically extending range across large properties. In practice, Z-Wave mesh reliability in security applications is affected by the time taken for signals to propagate through the mesh, which can cause detection latency that is undesirable in an alarm system. Z-Wave is more commonly used in smart home automation applications (lighting, blinds, thermostats) than in professional security systems, though some hybrid platforms combine Z-Wave smart home control with a separate dedicated radio for security sensors.

Wi-Fi based sensors offer the most straightforward integration with existing home networks and provide the easiest setup experience in consumer products. The reliability limitations are as discussed above: dependency on the router and internet connection, vulnerability to Wi-Fi network disruption, and congestion in dense residential areas where multiple Wi-Fi networks compete for channel space. In metropolitan Adelaide suburbs with high housing density, Wi-Fi congestion can cause intermittent sensor communication issues that are difficult to diagnose and frustrating to resolve. Professional-grade wireless systems specifically avoid Wi-Fi dependency for this reason.

Why Wireless Systems Suit South Australian Properties

Wireless security systems deliver particular advantages in several SA property categories where hardwired installations face specific challenges. Understanding these advantages helps SA homeowners recognise when wireless is not just a convenience but the clearly superior technical and practical choice.

Heritage and character properties in inner Adelaide suburbs including Norwood, Prospect, Walkerville, Glenelg, and Unley represent a significant proportion of the SA residential stock where a professional wireless system is the right choice. These homes commonly feature decorative cornices, leadlight windows, polished timber floors, and ornate architraves that would be damaged or require patching if cable runs for a hardwired system were routed through walls. A wireless system installs with no visible cable runs and minimal disruption to the heritage fabric of the building, achieving Grade 2 alarm performance without compromising the character that makes these properties desirable.

Double-brick construction, prevalent in homes built across SA from the 1950s through the 1980s, presents significant cable routing challenges for hardwired systems. Running alarm cable through solid double-brick walls requires either surface-mounted conduit (visible and unattractive) or drilling through the masonry at each sensor location, which is time-consuming and requires patching. Wireless sensors on a double-brick home install in an hour versus the half day or more that equivalent hardwired installation would require, and they do so without the visual and structural impact of surface conduit.

Rental properties in Adelaide's rental market, from city apartments in the CBD through to suburban houses in Elizabeth and Christie's Beach, benefit from wireless systems because they can be installed and removed without damaging the property, and because the sensor positions can be adjusted to suit each new tenant's requirements without cable routing changes. SA landlords investing in wireless security systems can provide a meaningful security enhancement to rental properties without the permanent infrastructure cost of a hardwired installation.

Multi-stage home upgrades are a common SA homeowner scenario where wireless systems excel. A family installing security on a home they plan to renovate in two years can install a wireless system now that can be easily supplemented with additional sensors when the renovation creates new rooms and entry points, without any cable infrastructure rework. The wireless architecture makes the system expandable at any time simply by pairing new sensors to the existing panel.

Large rural SA properties benefit from wireless where the distances between the homestead and outbuildings make hardwired cable runs impractical without underground conduit. A wireless sensor on a hay shed 80 metres from the homestead communicates directly to the panel using the 868MHz radio frequency without requiring conduit or cable. Where signal range is a concern on very large properties, wireless signal repeaters can extend coverage to outbuildings beyond the direct communication range of the panel, typically 800 metres to 1 kilometre in open conditions for the better 868MHz systems.

Wireless Security System Brands in South Australia

The SA professional wireless security market features a well-defined set of manufacturers whose systems are installed by licensed SA security companies and supported by Australian distribution networks. Brand selection matters because it determines the sensor ecosystem you are committed to, the monitoring centre compatibility, and the long-term availability of spare sensors and replacement parts.

Ajax Systems has achieved rapid adoption among SA professional security installers since its Australian launch, driven by its sophisticated 868MHz Jeweller radio protocol, clean smartphone app, and the intuitive Ajax PRO platform that installers use for system configuration. Ajax panels support IP and 4G cellular dual-path monitoring, integrate with professional Australian monitoring centres, and offer a broad sensor range including door and window contacts, PIR motion detectors, glass break detectors, outdoor PIR detectors, panic buttons, and smoke detectors, all using the same Jeweller radio protocol. Ajax systems meet Grade 2 requirements under AS 2201.1 when correctly configured. For SA homeowners looking for a premium wireless system with the best current technology, Ajax installed by a licensed SA company is the leading choice in 2026.

Bosch (RADION wireless) extends the Bosch Solution panel range with a dedicated wireless sensor series using the 433MHz RADION protocol. Bosch's SA market presence is extensive, with a large network of licensed SA installers who are familiar with the platform. The RADION system supports Grade 2 operation when correctly specified and integrates with Bosch's monitoring centre ecosystem. For SA properties where the homeowner or installer has an existing relationship with the Bosch platform and wants wireless sensors to supplement a hardwired installation, RADION provides a practical upgrade path without replacing the core panel.

Hills Reliance (Pyronix) uses the 433MHz Enforcer wireless sensor platform, which has a long track record in the Australian residential security market and remains widely installed across SA. The Enforcer platform is well understood by SA installers who have worked with it for many years, and parts availability and replacement sensors are readily accessible through Australian trade distributors. The system's primary limitation compared to newer platforms is the 433MHz frequency and older encryption standards compared to Ajax's 868MHz Jeweller protocol.

Risco produces wireless security platforms including the Agility 4 wireless panel and matching wireless sensor range. Risco has an established SA installer base and Australian technical support, and the Agility 4 supports Grade 2 operation with dual-path communication. The Risco platform is a solid mid-market choice and is a common recommendation from SA installers who want a reliable wireless system with good Australian support at a competitive price point compared to Ajax.

Consumer platforms including Ring Alarm, SimpliSafe, Swann, and similar brands are self-install consumer products available at JB Hi-Fi, Harvey Norman, and Bunnings. They offer genuine utility for low-risk or rental applications but should not be compared directly with the professional platforms above for insurance or Grade 2 security purposes.

Monitoring Options for Wireless Systems in SA

Wireless security systems can be operated in self-monitored mode, where the homeowner receives smartphone notifications and calls SA Police themselves, or in back-to-base mode, where a 24-hour monitoring centre handles alarm verification and police dispatch. The choice between these modes has a larger practical impact on security outcomes than most other system design decisions.

Professional wireless systems are designed to support back-to-base monitoring as their primary operational mode. The dual-path communication built into quality Grade 2 wireless panels (IP primary, 4G cellular backup) ensures the monitoring centre maintains communication with the alarm panel even during NBN outages, power outages (the panel's battery maintains operation), or attempted jamming events. This communication reliability is the core technical advantage of a professionally monitored wireless system over a self-monitored one.

Back-to-base monitoring for SA wireless alarm systems costs $25 to $75 per month depending on the monitoring grade, the monitoring centre's AS/NZS 2201.5 compliance status, the communication pathway included in the service, and whether the monitoring contract includes keyholder contact, police dispatch, or both. Our dedicated back-to-base monitoring SA guide covers monitoring centre grades, SA provider pricing, contract terms, and the practical difference between Grade 1 and Grade 2 monitoring in detail.

SA homeowners should confirm that any monitoring centre proposed by their installer is AS/NZS 2201.5 compliant. This standard sets operational requirements for monitoring centres providing Grade 2 residential alarm monitoring, including 24-hour staffing, redundant communication infrastructure, documented response protocols, and the capability to dispatch SA Police in response to a confirmed alarm event. Monitoring services that do not meet this standard may send app notifications but cannot provide verified police dispatch capability, which significantly limits their value as a residential security measure.

Insurance premium discounts for professionally monitored alarm systems vary by insurer in SA. Some SA home and contents insurers provide discounts of 5 to 15 percent for properties with a professionally installed and AS/NZS 2201.5-monitored alarm system. Contact your current insurer before installation to confirm what qualifies for a discount and whether the discount is sufficient to offset part of the monitoring cost. Insurers that require a specific alarm standard should be asked to confirm this in writing so that the installer can verify the proposed system meets the requirement.

Smart Home Integration with Wireless Security Systems

The boundary between a wireless security system and a smart home platform has blurred considerably in 2026. Modern professional wireless alarm systems from Ajax, Bosch, and Risco provide integration with Apple HomeKit, Google Home, and Amazon Alexa, allowing arm and disarm commands, zone status checks, and alarm event notifications through the same smart home interface used to control lighting, blinds, and heating.

Ajax Systems offers one of the more developed smart home integration capabilities among professional alarm platforms, supporting direct integration with Ajax-compatible smart home devices including smart sockets, light switches, and relay modules that respond to security events. When the Ajax system arms in away mode, it can trigger smart devices to simulate occupancy by activating lights on a schedule. When an intrusion alarm is triggered, it can switch on all connected lights and activate an external siren simultaneously with the back-to-base notification.

Video doorbells integrate with wireless alarm systems in several ways: the doorbell camera notification can appear in the same app as the alarm status, the doorbell can arm or disarm the system when an authorised person answers, or the doorbell's motion detection can be configured to trigger a security event. Ring doorbells integrate naturally with Ring Alarm systems in the consumer product ecosystem. In the professional market, some Ajax-compatible video doorbells are available that integrate natively with the Ajax platform, while third-party integration through home automation hubs can bridge Ajax with non-Ajax doorbell hardware.

Motion sensors used in wireless security systems can double as smart home presence sensors in compatible ecosystems, triggering lighting when movement is detected or adjusting heating and cooling based on room occupancy. This dual-use capability makes the security sensor infrastructure more economically efficient in smart home applications, as the sensors serve security and automation purposes simultaneously rather than requiring separate hardware for each function.

Intercom systems and access control systems integrate with wireless alarm panels to create a unified entry management system. An intercom that connects to the alarm panel can automatically disarm a specific entry zone when an authorised visitor is buzzed in, and can re-arm the zone when the entry door is closed and locked. Access control keypads and proximity readers can arm and disarm specific partitions of the alarm system as well as controlling locking hardware, providing a single credential management point for properties with multiple users.

Licensing Requirements for SA Wireless Security Installers

The licensing requirements for wireless security system installation in South Australia are identical to those for hardwired systems: any installer who performs this work on a commercial basis must hold a current security industry licence under the Security and Investigation Industry Act 1995 (SA), administered by Consumer and Business Services SA (CBS SA). The licence category is Security Equipment Installer, and it applies to both professional and consumer-grade commercial security system installation.

The self-installation exemption that applies to homeowners installing their own wireless consumer systems (Ring, Eufy, SimpliSafe) does not extend to commercial installation companies. A security company installing any wireless alarm system, regardless of the technology or brand, must hold the current SA licence and ensure all technicians performing installation work are individually licensed.

Verify any proposed installer's current SA security industry licence on the CBS SA public register before signing a contract. The CBS SA register search is available at cbs.sa.gov.au and returns the licence holder's name, licence category, and current expiry date. If the installer sends a different technician than the person discussed during the quoting process, ask for that technician's individual licence number and verify it before allowing the installation to commence.

ASIAL (Australian Security Industry Association Limited) member companies voluntarily commit to higher professional standards than the basic CBS SA licensing threshold. Engaging an ASIAL member installer adds a layer of professional accountability and provides access to ASIAL's member dispute resolution process if issues arise. The ASIAL website lists member companies by state and allows you to confirm ASIAL membership for any SA security company. ASIAL membership does not replace the requirement to verify the CBS SA licence independently.

Adelaide Metro Wireless Security Pricing by Area

The following pricing reflects a professionally installed Grade 2 wireless alarm system with an encrypted 868MHz panel, eight detection zones (six wireless door and window sensors plus two wireless PIR detectors), a wireless external siren, and a dual-path IP plus 4G cellular communicator, installed in a standard SA residential property with accessible mounting positions.

Inner Adelaide heritage properties in Norwood, Prospect, Walkerville, and Unley represent the clearest case for wireless security systems in SA. These homes typically have decorative cornices, pressed metal ceilings, and ornate architraves that a hardwired installation would require patching at every cable penetration point. A wireless system installs without any visible cabling, maintains the heritage interior fabric without compromise, and delivers Grade 2 alarm performance indistinguishable from a hardwired system during operation. The absence of cable runs also simplifies future sensor position changes if the homeowner rearranges rooms or adds an extension.

Adelaide Hills properties from Stirling through Hahndorf to Mount Barker and beyond often require wireless systems that can cover larger property footprints than standard suburban homes. A rural-residential Hills property with a homestead, double garage, and workshop may require eight to twelve detection zones to cover all entry points comprehensively. The 868MHz signal range of Ajax sensors (direct communication range of approximately 2 kilometres in open conditions, 200 to 500 metres through typical construction) covers standard Hills property dimensions without repeaters in most cases. For Hills properties with multiple detached buildings at greater distances, wireless signal repeaters extend coverage economically.

Regional South Australia Wireless Security Pricing

Regional SA wireless security pricing is comparable to metropolitan Adelaide for properties near major regional centres, with travel costs adding $150 to $400 for properties requiring an Adelaide-based installer. Regional centres including Mount Gambier, Whyalla, Port Augusta, Port Lincoln, and the Barossa Valley have established local security companies that install and service wireless systems at competitive pricing.

The Barossa Valley and McLaren Vale wine regions present a combination of residential and commercial wireless security requirements. Winery cellar doors and restaurants often operate with lone workers during setup and opening, creating a requirement for duress buttons that trigger back-to-base monitoring and SA Police dispatch. A wireless system with portable duress buttons that lone workers can carry provides this capability without fixed button hardware at every work station. Ajax Systems' wireless duress pendant and Bosch's wireless panic devices are examples of this functionality in professional platforms commonly installed in SA wine region commercial properties.

Eyre Peninsula properties in Port Lincoln, Whyalla, Port Augusta, Streaky Bay, and Ceduna face strong coastal winds and significant salt air exposure that affect the external siren housing and any externally mounted wireless sensor. Outdoor wireless sensors in very exposed coastal locations should be confirmed as IP65 rated or higher. The external siren housing should be a marine-grade unit or stainless steel to resist corrosion. The 4G cellular communication module in the alarm panel provides the most reliable monitoring pathway for Eyre Peninsula properties where NBN reliability can be variable, and this should be specified as the primary rather than backup communication path in the most remote SA locations.

Rural and Remote SA Wireless Security Considerations

Rural properties across SA from the Flinders Ranges through the Murray Mallee to the Far North present wireless security challenges that metropolitan installers may not encounter in standard residential work. Understanding these challenges helps rural SA property owners specify systems that will function reliably under conditions very different from a suburban Adelaide home.

Mobile network coverage maps from Telstra, Optus, and TPG (Vodafone) show significant coverage gaps across SA's rural areas, particularly in the Far North, parts of the Outback, and some Eyre Peninsula locations beyond the major coastal towns. A wireless alarm system that relies on 4G cellular as its monitoring communication pathway requires adequate mobile signal at the property. Before committing to a cellular-monitored system for a rural SA property, check the coverage maps for the specific property location and, where possible, test the actual signal strength at the panel installation location using a mobile phone on the proposed carrier's network.

Starlink satellite internet is increasingly installed at rural SA properties and provides an IP internet path that can substitute for NBN or 4G cellular where neither is available. Most alarm panels can use an IP connection over any internet source, including Starlink, as the primary monitoring path. However, Starlink's intermittent service interruptions (brief dropouts of seconds to minutes) mean 4G cellular backup remains important even for Starlink-connected rural SA properties, as monitoring centres may not tolerate frequent brief communication gaps without generating fault alerts.

Solar power is common at remote SA properties where mains electricity is unavailable. Wireless alarm panels can be powered by a dedicated 12V battery bank charged by a solar panel, with the battery also providing the panel's backup power during cloud periods. This configuration requires the installer to size the battery bank for the panel's power consumption and the expected charging conditions at the SA property's location and orientation. An incorrectly sized solar-battery system for a remote SA alarm panel can result in the system dropping out during extended overcast periods, leaving the property unprotected and generating false monitoring alerts. A licensed SA installer experienced with remote property security should assess the power supply requirements carefully for off-grid rural installations. SafeWork SA also provides general electrical safety guidance applicable to battery storage and solar power installations in SA rural and remote workplaces.

What to Look Out For in Wireless Security System Quotes

Getting the right wireless security system in SA requires asking specific questions and knowing what a comprehensive, honest quote looks like. The following guidance applies to both residential and commercial wireless security installations across South Australia.

Verify the installer's current SA security industry licence on the CBS SA register at cbs.sa.gov.au before signing any agreement. Ask for the individual technician's licence number, not just the company name. A legitimate licensed SA installer will provide this without hesitation.

Ask specifically what radio frequency and protocol the proposed system uses, and why the installer recommends that technology for your property type and location. A knowledgeable SA installer should be able to explain the choice between 868MHz encrypted wireless (such as Ajax Jeweller) and alternatives, and should be able to confirm the system meets AS 2201.1 Grade 2 requirements when correctly configured and monitored.

Confirm the monitoring centre name, its AS/NZS 2201.5 compliance status, and the specific monitoring grade being provided. A Grade 2 back-to-base monitoring service from an AS/NZS 2201.5 compliant centre is the appropriate standard for residential SA wireless alarm monitoring. Ask whether the monitoring fee includes keyholder contact only, or both keyholder contact and SA Police dispatch capability.

Read the monitoring contract in full before signing. Confirm the contract term (typically 24 to 36 months), the early termination fee calculation, any annual price escalation clause, and the notice period required to cancel at the end of the term. A 36-month monitoring contract at $55 per month represents a $1,980 commitment beyond the equipment cost, and understanding this full commitment before signing is important.

Ask about battery life for the proposed wireless sensors and the panel's procedure for notifying you when sensor batteries need replacement. A quality professional wireless system should report low battery status in the app and on the panel keypad well before the battery is exhausted, typically months in advance. Ask the installer to demonstrate the battery replacement process for the sensor type being installed so that you know how to handle this routine maintenance task independently.

If a dispute arises with your SA wireless alarm installer, Consumer and Business Services SA (CBS SA) is the licensing regulator for security industry practitioners under the Security and Investigation Industry Act 1995 (SA) and handles formal complaints about licence holder conduct. The SA Civil and Administrative Tribunal (SACAT) provides formal consumer dispute resolution for installation quality, contract, and equipment disputes without requiring a solicitor. If the dispute involves a monitoring subscription contract with unfair terms or automatic rollover provisions that were not clearly disclosed at the time of signing, the Australian Competition and Consumer Commission (ACCC) provides guidance on your rights under the Australian Consumer Law, which prohibits unfair contract terms in standard form consumer contracts. ASIAL membership by the installing company provides an additional internal complaint resolution pathway that may resolve disputes without the need for formal proceedings.

Our security systems SA guide covers the broader context of home security system design for SA properties, including the role wireless systems play in a complete security installation. Our CCTV installation SA guide covers wireless camera systems that can complement a wireless alarm installation. Physical security measures including security screen doors, security glass, and high-security door locks provide physical hardening of entry points that electronic security systems detect and record but cannot physically prevent. The combination of electronic detection, monitored response, and physical hardening represents the most effective SA residential security strategy.