Wireless Alarm Systems

A wireless burglar alarm goes into a finished property without lifting floors or chasing walls, which is why it is what most retrofits use.

These are complete systems rather than single devices: a hub paired with PIR detectors, door contacts and a siren, ready to arm from an app. Ajax builds on Hub 2 and Hub 2 Plus over Jeweller radio; Hikvision AX PRO uses Tri-X two-way 868MHz with AES-128; Pyronix Enforcer is hybrid, so wireless devices and wired zones run on one panel. GJD supplies external detection alongside. Grading, radio frequency and expandability are stated per system.

For individual devices to extend a system see Smart Alarms & Sensors and Alarm Panels. For fire detection on the same hub see Ajax Smoke Detectors.