Speed Sensor Module Tacho Sensor Slot-Type Optocoupler (3.3V-5V, Digital Pulse Encoder Sensor)

The Speed Sensor Module Tacho Sensor Slot-Type Optocoupler is a compact optical sensing module designed for non-contact rotational speed and position detection. It uses a slot-type optocoupler consisting of an infrared LED and phototransistor to detect interruptions caused by an encoder wheel, slotted disc, or object passing through the sensor gap. Each interruption generates a digital pulse that can be counted by a microcontroller to measure RPM, speed, position, or rotational direction. Compatible with Arduino, ESP32, ESP8266, STM32, Raspberry Pi, PIC, and other microcontroller platforms, this module is ideal for tachometers, motor feedback, robotics, automation, and encoder applications.

Key Features -

• Slot-type infrared optocoupler sensor

• Non-contact speed detection

• Digital pulse output

• Fast optical switching response

• High accuracy pulse detection

• Compact PCB module

• Low power consumption

• Easy microcontroller interfacing

• Suitable for RPM and encoder applications

• Ideal for robotics and automation

Specifications -

• Product type - Speed Sensor Module

• Sensor type - Slot-Type Optocoupler

• Detection method - Infrared Optical Interruption

• Output type - Digital Pulse Signal

• Operating voltage - 3.3V to 5V DC

• Response time - Fast Optical Switching

• Mounting type - Slot Opening for Encoder Wheel or Strip

• Mounting style - PCB Module

• Operating temperature - Standard Ambient

• Detection target - Slotted Disc, Encoder Wheel or Interrupting Object

Applications -

• Motor speed measurement

• RPM counters

• Tachometers

• Wheel rotation sensing

• Rotary encoders

• Robotics

• Industrial automation

• Embedded electronics