Optocoupler Motor Speed Measuring Counter Sensor Module Slot-Type Pack of 5

Optocoupler Motor Speed Measuring Counter Sensor Module Slot-type Features: 1, use imported groove coupler sensor 2, the groove width of 5mm. 3, output status indicator, the lamp output high, output low lights. 4, obscured output high; unobstructed output low. 5, the comparator output, the signal is clean, the waveform, driving ability, more than 15mA. 6, operating voltage 3.3V-5V 7, the output in the form: Digital switching outputs (0 and 1) 8, a fixed bolt hole for easy installation 9, small plates PCB Dimensions: 3.2cm x 1.4cm 10, using a wide voltage LM393 comparator Module using the instructions: 1 module slot unobstructed, receiver tube conduction module DO output low, shelter, DO output high; 2 module DO connected to the relay, composed of the limit switch functions can also be connected to the active buzzer module, composed of the alarm. Package 1pc Slot-type Optocoupler Module Counter Module