Sentivity Adjustable Continuously LED Indicator: Red (Alarming) and Green (Detecting) Tamper Switch Output: 150mA, 28VDC High Immunity to RFI and EMI Signals Detection Range: up to 9m Power: 9-16VDC Current: 17mA/12VDC Working Temp:-20℃ ~ +50℃ Working Humidity:≤90% RH Size:90 L×66 W×25 H mm