Adopts advanced data signal processing technology and composed by high precision IR detector and logic digital circuit, the IR detector has the feature of saving electricity, automatic temperature compensation, and alarming when the battery in low tension. The detector can detect the IR heat energy the body and give signal to the control panel, so the control panel alarm. It is beautiful in design, safe in use, high in quality and simple in fixing. 1. Anti-tamper switch: The detector gives alarm when disconnected. 2. Program the control panel: Press the anti-tamper switch once and it gives the signal. 3. Low battery warning is reported: when the battery is low, the LED flashes five times. It doesn抰 alarm when in static condition. 4. Alarm time ed: 3 or 30 seconds; ed by the jumper. 5. It can be compatible with many kinds of control panels. Specification: 1. Power Supply：DC9V 2. Static Current：＜30μA 3. Operation Current：＜16mA 4. Detect Angle：360? 5. Temperature Compensation: Automatic 6. Scope of Cover: 7.3M (diameter) when 2.4M high; 9M (diameter) when 4.5M high 7. Operation Temp: -10℃～50℃ 8. Size： Φ96?5（mm）