Infrared Perimeter Alarm Triple Beam Photoelectric – -250 Security System, 250m Outdoor Range, 3 Beam Technology, Water- & Easy To Install Infrared Detector Half egg shape design: input: RX 15 mA -TX 30 mA, operating temperature range: -10 ℃ to 70 ℃. 2PCS Infrared Beam Detector Home Security 20m Doub... – Vicedeal Weather: The range can be reduced by 30% in undesirable weather conditions such as fog, rain, dust, etc. Between these two detector parts there is an infrared range. If someone passes the infrared range for a set response time, the detector sends an alarm signal that is ideal for the security system in schools, office buildings, hospitals, car parks and residential buildings, etc. Specification: Condition: new brand Colour Infrared beam: Creates a reliable and invisible infrared beam with a range of up to 20 meters. 20m Waterproof Active Photoelectric Single-beam Infrared Laser Sensor Obstacle Detector Anti-theft Alarm System Home Security - 1420 Package included: 1 x transmitter 1 x receiver 1 x accessory set 1 x user manual Note: 1., The best installation height should be more than 20cm, the distance is not less than 2 meters., 2., Infrared protection device should be installed vertically and at the same height., 3., First install the receiver, then install the transmitter.
