Temperature-sensitive, do not installed toward sunlight, window and the frequently temperature changed place. Power-saving and intellectual analysis design, has more continuous working time than other detector. It can detect moving body in angle Horizon 110, vertical 60 as far as 5-12m. Suitable for any room; Excellent reliability and high stability; Durable sensor head; Self test function Modernized design; Easy installation and maintenance. Sensitive gas: coal gas, natural gas, LPG (liquefied petroleum gas) Alarm density: coal gas: 0.1-0.5%; natural gas: 0.1-0.3%; LPG: 0.1-0.2% Working power: 110AC/220AC Package: Keypad/Control Unit x1 Door/Window Sensors x1 Motion Detector x1 Coal gas Alarm x1 Keychain Remotes x2 Ear Piercing Indoor Siren x1 Power Adaptor x1