ALEKO® When it comes to keeping your automated gate safe, ALEKO Infrared sensor is the way to go. Attain peace knowing your family and vehicle will be protected from the occasional mishap that can sometimes occur. One or two carefully placed sensors can keep your automatic gate opener from closing accidentally on a vehicle or more importantly on a person. The ALEKO Infrared sensor can be powered with 12/24 DC or AC voltage which can be conveniently powered off any ALEKO low voltage automatic gate opener. It can be easily installed. The photocell also integrates an Internal Rotation system that the angel of the beam can be adjusted from 0-180 degrees. Working temperature: -4 degrees Fahrenheit to +140 degrees Fahrenheit. Waterproof grade: IP54.