1Motion detection, when an intruder passes through the detection area, the detector will automatically detect and issue an alarm. 2With excellent antifalse alarm and capturing capabilities, 360degree monitoring without dead ends, and high security. 3Real temperature compensation technology, adjustable bipolar pulse count, stable performance and strong practicability. 4Manufactured by SMT process, strong antiinterference ability, antiwhite light interference, antiradio frequency interference (20v/m1GHz). 5Infrared detection alarm, uses ABS flameretardant material, durable and safe, excellent seismic performance. 6Ceiling installation, good decoration effect, suitable for houses, factories, shops, warehouses, office buildings, banks, etc.Condition: 100% Brand NewItem Type: Infrared DetectorMaterial: ABSWorking Voltage: DC9V-16VCurrent Consumption: 18mADetection Range: 8m / 26.2ft in Diameter (When the installation height is 3.6m)Detection Angle: 360 DegreesSelf-Check Time: About 60sAlarm Indication: Red LEDCoverage Area: 24pcs in the far area, 24pcs in the middle area, 6pcs in the near areaSensor: Dual-Element Pyro-Infrared SensorWorking Temperature: -10-50Environmental Humidity: Maximum 95%RH (No Condensation)Anti-RF Interference: 10MHz-1GHz 20V/MInstallation Method: Ceiling MethodInstallation Height: 2.5-6m / 8.2-19.7ftAlarm Output: NC/NO Selectable, Contact DC28V 100mATamper Output: NC, Contact DC28V 100mAWeight: Approx. 50g / 1.8ozProduct Size: Approx. 8x2.5cm / 3.1x1.0in1 x Infrared Detector1. Please allow 01 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.