The 180° outdoor motion sensor can be placed up to 2,000 feet from the tattletale base unit. It’s designed to protect the exterior of a building, property or fence. It utilizes both analog and digital technologies to detect approaching intruders before they gain access into protected areas. With its wide and comprehensive field of view and the ability to tailor its settings to meet the environment around your premise, the 180° outdoor motion sensor will provide an effective solution. It can operate normally between -4 degrees and 122 degrees and is weather resistant. The 3V CR123A Lithium battery provided will typically last for 2-3 years depending on usage.