Speed Measuring Sensor

Speed Measuring Sensor Counter Motor test module slot type optical coupling for Arduino.
Widely used in motor speed detection, pulse count, the position limit, etc.

Features:

• Using imported trough type optical coupling sensor, groove width 5 mm.
• The output state light, lamp output level, the output low level light.
• Covered, output high level;Without sunscreen, the output low level.
• The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 ma.
• The working voltage of 3.3 V to 5 V
• Output form: digital switch output (0 and 1)
• A fixed bolt hole, convenient installation
• Small board PCB size: 3.2 cm x 1.4 cm
• Use the LM393 wide voltage comparator Module