It is designed to be used as a reversing sensor for automatic garage door, vehicle swing gates and parking barriers. It is very easy to install and use with reliable performance.

Specifications
Detection Method: Retro-Reflective
Sensing Range: 33 Feet (10 m)
Supply Voltage: 12-240VDC/24-240VAC
Output: Relay SPDT
Output Capacity: 3A/30VDC, 1A/240VAC
Protection Degree: IP65

There are 3 parts in the package, the photocell, the reflector and the mounting bracket. The emitter and receiver are integrated in the same unit, so the installation of the photocell could be easier.