Photoelectric Beam Speed Sensor Module 3.3V-5V Slot-Type Optocoupler Tacho-Generator Counter For Arduino/51/AVR/PIC Diy Kit

High-concerned chemical：None isCustomized：Yes Theory：Hall Sensor Model Number：Speed Sensor Module Material：Porcelain Type：vibration sensor Output：Switching Transducer Brand Name：GREATZT Use：Speed Sensor Origin：Mainland China

High-concerned chemical: None isCustomized: Yes Theory: Hall Sensor Model Number: Speed Sensor Module Material: Porcelain Type: vibration sensor Output: Switching Transducer Brand Name: GREATZT Use: Speed Sensor Origin: Mainland China