Stand Alone PIR Alarm with remote control The XENA XA201 sets up a 20ft. (6m) zone in your home, garage or caravan. Uses passive infrared sensors to detect intruders and when triggered sounds a blaring 135dB alarm. Programmable battery-operated keyfob operates the unit remotely. Easy to install: simply mount, insert batteries and activate or deactivate using the remote provided; your garage is now protected. A 15-second delay allows the user to enter the disarm code without triggering the siren. Once triggered, the siren sounds for 30 seconds before resetting. Features: • Infrared Beam • 20ft. (6m) Range • 135dB Alarm • Code Activation • Built Tough Battery: 4 x Alkaline AA batteries Battery life: Approximately four months (based on five arm-and-disarm cycles per day, alarm activation four times per day).