EQ-501 Sunx infrared transceiver
Comes in a single unit with transmitter and receiver built
in. Adjustable range 0.2 to 2.5 meter. Relay
contact output. 20 msec response time.
Extremely convenient as it does not requires any
additional wiring on the opposite side for a transmitter.
ART104 DEA photo beam
Made in Italy. Come in a pair of transmitter and
receiver. Typically used as additional safety
feature in sliding gate installation. It can
effectively detect any possible obstacle in the gate's
straight line pathway.