Product Features
long size: 32mm X 11mm X height 20mm width
the main chip: LM393, infrared on the radio head
working voltage: DC 5 Volt
characteristics:
1, with the signal output instructions.
2, a single channel output.
3, the output valid signal is low.
4, the sensitivity is not adjustable.
5, can be used for parts counting, motor speed. . . .
6, the circuit board output switch!