12/24V 20m Photocell Beam Sensor for Sliding Gate Opener — Infrared Safety Photo Cell with Smart WiFi Control

Designed for sliding gate systems, this 12/24V photocell beam creates a 20m infrared detection zone and offers Smart WiFi control. Install each detector pair facing one another so an infrared beam spans between the two units; if the beam is broken, the detector transmits an alarm signal to a security alarm host (not included). "Install Distance (Max.)" shown in the product chart indicates the maximum allowable separation between the two detectors. Ideal for security installations at schools, office buildings, hospitals, home yards and similar environments. Note: in adverse weather (rain, dust, etc.) the effective detecting range can fall to about 30%. An English user manual is included in the package with detailed installation and usage instructions.