--- product_id: 495034550 title: "TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module" brand: "tecnoiot" price: "VT10987" currency: VUV in_stock: true url: https://www.desertcart.vu/products/495034550-tecnoiot-5pcs-infrared-slotted-optical-speed-measuring-sensor-detection-optocoupler store_origin: VU region: Vanuatu --- # Digital Switch Output 5.9mm Slot Width 3.3V-5V Power TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module **Brand:** tecnoiot **Price:** VT10987 **Availability:** ✅ In Stock ## Summary > 🚀 Speed Up Your Projects with Precision! ## Quick Answers - **What is this?** TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module by tecnoiot - **How much does it cost?** VT10987 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/495034550-tecnoiot-5pcs-infrared-slotted-optical-speed-measuring-sensor-detection-optocoupler) ## Best For - tecnoiot enthusiasts ## Why This Product - Trusted tecnoiot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Design:** Lightweight and space-efficient, perfect for any project. - • **Real-Time Feedback:** Instant output changes for immediate response to speed variations. - • **User-Friendly Setup:** Simple wiring and setup for both beginners and advanced users. - • **Versatile Integration:** Easily connect to MCUs for seamless programming and functionality. - • **Precision Speed Measurement:** Harness the power of infrared technology for accurate speed detection. ## Overview The TECNOIOT Infrared Slotted Optical Speed Measuring Sensor is a compact and efficient module designed for precise speed detection. With a working voltage of 3.3V-5V and a digital switch output, it seamlessly integrates with various microcontrollers, making it ideal for both hobbyists and professionals. Its 5.9mm groove width allows for accurate measurement of non-transparent objects, ensuring reliable performance in diverse applications. ## Description TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module ## Features - 【IR OPTIAL SPEED】☆☆☆Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module. The slot type photoelectric sensor is composed of an infrared light emitting diode and an NPN phototransistor with a groove width of 5.9 mm. As long as the non-transparent object passes through the slot type, it can be triggered (used with the shop's car code wheel) to output TTL low level. - 【Specifications】✔Working voltage: 3.3V-5V✔Output form: digital switch OUT output (0 and 1)✔When VCC and GND are connected, the module signal indicator will be on. ✔When blocking, the OUT output is low and the signal indicator is off. ✔The module OUT can be connected to the relay to form a limit switch and other functions, and can also be connected to the active buzzer module to form an alarm. - 【Programming】✔The OUT output interface can be directly connected to the IO port of the MCU. ✔Generally, it is connected to an external interrupt to detect whether the sensor has a occlusion. ✔For example, the motor code wheel can detect the motor speed. ✔The OUT port of the speed measuring module is linked to the external interrupt port of the MCU. Whenever there is infrared ray conduction, it is an external buffer. - 【Measuring】✔Measuring distance:The speed sensor output is a pulse signal, one pulse is interrupted once; the infrared ray is low when it is turned on, so we set the interrupt to the low level touch mode. ✔Measuring speed:According to the idea of measuring distance, we use an MCU timer to calculate how many external interrupts are received in one second. - 【Precautions】✔Correct wiring! Do not reverse the positive and negative, so that the board electronics burn out. ✔Arduino players should set the MCU's I/O port to input mode/receive mode, otherwise they will not be available. ✔Other MCUs, or more advanced control boards, must be set to input mode/receive mode if the I/O port needs to be set to input/output mode, ✔otherwise it cannot be used. The 51 series MCU can be used directly without setting the input/output mode. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | TECNOIOT | | Package Dimensions | 15.4 x 13.3 x 1.8 cm; 60 Grams | | Item model number | A692-IROPTICALSPEED-119-5PCS | | Manufacturer | TECNOIOT | | Are Batteries Included | No | | Item Weight | 60 g | | Guaranteed software updates until | unknown | ## Images ![TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module - Image 1](https://m.media-amazon.com/images/I/71HwyDACvPL.jpg) ![TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module - Image 2](https://m.media-amazon.com/images/I/61wG6P-p4xL.jpg) ![TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module - Image 3](https://m.media-amazon.com/images/I/51J1XvhALDL.jpg) ![TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module - Image 4](https://m.media-amazon.com/images/I/61GQe8WChCL.jpg) ![TECNOIOT 5pcs Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler Module - Image 5](https://m.media-amazon.com/images/I/51CaDt5FqbL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/495034550-tecnoiot-5pcs-infrared-slotted-optical-speed-measuring-sensor-detection-optocoupler](https://www.desertcart.vu/products/495034550-tecnoiot-5pcs-infrared-slotted-optical-speed-measuring-sensor-detection-optocoupler) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*