The beam of the Nice F210 photocells has a horizontal scope of 210° thereby increasing the safety level of the system and simplifying installation: the gate or garage door to be automated quite often slide flush with the wall making it very difficult to position the photocell.
The F210 photocells are available with relay output
The MWR12 receiver is designed to receive information from the transmitter and relay it to the motor to stop or reverse motion if the edge comes into contact with an obstruction.