Features: Made of high quality material for durability and stability. Infrared detectors absorb visible light to store electricity into batteries. It can be mounted on the ceiling for infrared detection without occupying space. It can send signals to the host for sound alarm. This alarm can be connected with 32 detectors, built-in speaker, and can receive the door magnetic alarm, infrared alarm signal and alarm. Specifications: Condition: Brand New Color: Shown as Picture Material: ABS Optional Plug: EU Plug, AU Plug, UK Plug, US Plug Host: Working Voltage: 12 V-15 V Standby Power Supply: 4 * AA Batteries(Excluded) Standby Time: 6-8 hours Standby Current: Less Than 75 mA Alarm Current: Less Than 300 mA Associated Capacity: 32 Detectors can be associated. Operating Temperature: -10 ℃- 55 ℃ Solar Infrared Detector: Solar Panel Voltage: 5 V Working Voltage: 3.6 V Battery Capacity: 800 Solar Panel Material: Amorphous Silicon Alarm Current: Less Than 60mA Standby Current: Less Than 40uA Detection Angle: 4° horizontally, 100 ° vertical Blocking Time: 30 seconds and 120 seconds optional Detection Distance: 0-8 meters Transmit Time: 5 seconds Sensitivity Adjustment: H/ L Transmit Mode: 433 Wireless Transmission Distance: Less Than 300 meters Battery Life: Less Than or Equal to 5 years Working Temperature Environment: -20 ℃ - 50 ℃ Package List: 1 * Alarm Mainframe (including a Manual, a Plug, a Wire) 2 * Infrared Detectors (contains a Manual, an ER26500 Lithium Battery 8000mah, an Outgoing Bracket, and a package of Installation Screws) 1、Made of high quality material for durability and stability. 2、Infrared detectors absorb visible light to store electricity into batteries. 3、It can be mounted on the ceiling for infrared detection without occupying space. 4、It can send signals to the host for sound alarm. 5、This alarm can be connected with 32 detectors, built-in speaker, and can receive the door magnetic alarm, infrared alarm signal and alarm.