1/5/10PCS speed sensor Tacho sensor Slot-type Optocoupler Tacho-generator Counter Module for Arduino for Raspberry pi

High-concerned chemical：None Theory：Current Sensor Model Number：speed sensor module Material：Mixture Type：vibration sensor Output：Analog Sensor Brand Name：Roarkit Origin：Mainland China Use：Consumption Sensor

High-concerned chemical: None Theory: Current Sensor Model Number: speed sensor module Material: Mixture Type: vibration sensor Output: Analog Sensor Brand Name: Roarkit Origin: Mainland China Use: Consumption Sensor