Security Motion Sensors

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ALC AHSS31 Motion Detector, 40 ft Detection

The motion sensor is simple to install and alert you in the event of an unauthorized movement by human or animal within a 40 ft range of installation. You will be instantly notified by your iOS or Android smartphone or tablet in the event of a breach when system is armed.

Chamberlain CWA2000 Motion Alert System, 120 deg Detection, 30 ft Detection

This convenient safety and security system uses passive infrared (PIR) to alert with a unique light and sound pattern to identify which sensor has been triggered. Includes one year warranty, one battery/AC-powered base receiver and one sensor (CWPIR), additional CWPIR sensors sold separately. No wiring is required and the base unit uses the included AC adapter or AA batteries, which will last up to 2 years.

Chamberlain CWPIR Motion Alert System, 120 deg Detection, 30 ft Detection

Wireless motion alert system detects motion up to 30 ft away with wide 120 deg coverage, transmits signal to base station up to a half-mile away. Sensor has adjustable sensitivity controls. Receiver indicates movement with light and sound, features adjustable volume controls. System includes one base station, one motion sensor, one AC adapter, mounting hardware and non-slip feet. Receiver is powered by an AC adapter (provided), four AA batteries enable battery backup mode. System can accommodate up to 4 sensors per base station. Sensor requires four AA batteries.