Description 100% brand new & high quality Material:Pastic Type: Single Beam Power Supply: DC/AC 12 to 24V Wave Length: 940nm Input: RX 15mA~TX 30mA Operating Temperature: -10°C to 70°C Install Distance(Max.): <20m (Range will be reduced to 30% in bad weather condition:fog,rain,dust NOTE 1.As different computers display colors differently, the color of the actual item may vary slightly from the above images. 2.please allow 1-3 CM differs due to manual measurement. Thanks for your understanding. Package include: 1 Pair x Active Infrared Detector 1 x English Usage Manual