The PIR Model ITRA110/ITRA600 is a wireless, indoor motion detector designed for security systems. It has a range of 12 meters and 90 degree detection angle, uses one lithium battery that lasts 4 years, and transmits sensor status every 8 minutes including its ID code, tamper status, and battery life. It is made of ABS plastic, measures 3x2x2 inches and weighs 3 ounces, operates between 32-104 degrees Fahrenheit, and mounts at a height of 6.9 feet.