--- product_id: 41086123 title: "Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167]" brand: "adafruit" price: "€ 14.20" currency: EUR in_stock: true url: https://www.desertcart.be/products/41086123-adafruit-ir-break-beam-sensor-3mm-leds-ada2167 store_origin: BE region: Belgium --- # Ultra-fast <2ms response Precise 10" (25cm) detection range Dual voltage 3.3-5.5V power Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] **Brand:** adafruit **Price:** € 14.20 **Availability:** βœ… In Stock ## Summary > πŸš€ Detect motion at the speed of light β€” don’t let your projects lag behind! ## Quick Answers - **What is this?** Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] by adafruit - **How much does it cost?** € 14.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/41086123-adafruit-ir-break-beam-sensor-3mm-leds-ada2167) ## Best For - adafruit enthusiasts ## Why This Product - Trusted adafruit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Flexible power options:** Runs efficiently on 3.3V or 5V, with enhanced range at 5V for professional-grade setups. - β€’ **Pinpoint sensing control:** Target exact zones with a focused 10Β° IR beam and 10-inch range for smarter monitoring. - β€’ **Robust output capability:** Open collector transistor output sinks up to 100mA, perfect for driving relays or LEDs directly. - β€’ **Compact & lightweight design:** Slim 20x10x8mm modules weighing just 3g each, ideal for sleek, unobtrusive installations. - β€’ **Lightning-fast motion detection:** Break beams react in under 2 milliseconds, leaving PIR sensors in the dust. ## Overview The Adafruit IR Break Beam Sensor (3mm LEDs) offers ultra-fast, precise motion detection with a 10-inch range and sub-2ms response time. Powered by 3.3-5.5V, it features an open collector output capable of sinking 100mA, making it ideal for professional and DIY security or automation projects requiring pinpoint accuracy and reliable performance. ## Description Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. When something passes between the two, and its not transparent to IR, then the 'beam is broken' and the receiver will let you know.Compared to PIR sensors, breakbeams are faster and allow better control of where you want to detect the motion. Compared to Sonar modules, they're less expensive. However, you do need both emitter and receiver on opposite sides of the area you want to monitor.This is the 3mm IR version. It works up to 25cm / 10". You can power it from 3.3V or 5V, but 5V will get you better range and is what we suggest. The receiver is open collector transistor output which means that you do need a pull up resistor if you want to read a digital signal off the signal wire. Most microcontrollers have the ability to turn on a built in pull up resistor. If you do not, connect a 10K resistor between the white wire of the receiver and the red wire. If you want to control a relay or LED or whatever, it can sink up to 100mA to groundItem SpecificsSensing Distance: Approx 25cm / 10"Power Voltage: 3.3 - 5.5VDCEmitter Current Draw: 10mA @ 3.3V, 20mA @ 5VOutput Current Capability of receiver: 100mA sinkTransmitter/Receiver LED Angle: 10Β°Response Time: <2 msDimensions: 20mm x 10mm x 8mm / 0.8" x 0.4" x 0.3"Cable Length: 234mm / 9.2"Weight (of each half): ~3g ## Features - Simple way to detect motion - Faster than PIR sensors and allow better control of where you want to detect the motion - Works up to 10 inches - Open collector transistor output receiver ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01BU6YBWU | | Battery Type | battery not included | | Best Sellers Rank | #160,007 in Electronics ( See Top 100 in Electronics ) #561 in Motion Detectors (Electronics) | | Brand | Adafruit | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (121) | | Date First Available | February 16, 2016 | | Is Discontinued By Manufacturer | No | | Item Weight | 0.01 ounces | | Item model number | 2167 | | Manufacturer | Adafruit | | Package Dimensions | 2.91 x 2.4 x 0.39 inches | | Power Source | Corded Electric | ## Product Details - **Brand:** Adafruit - **Color:** Black - **Item Weight:** 0.01 Ounces - **Maximum Range:** 25 Centimeters - **Power Source:** Corded Electric ## Images ![Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] - Image 1](https://m.media-amazon.com/images/I/41yytLApGKL.jpg) ![Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] - Image 2](https://m.media-amazon.com/images/I/41FEv0ZcTTL.jpg) ![Adafruit IR Break Beam Sensor - 3mm LEDs [ADA2167] - Image 3](https://m.media-amazon.com/images/I/41pBQEZVwwL.jpg) ## Questions & Answers **Q: Where is the IR breakbeam tutorial ?** A: https://learn.adafruit.com/ir-breakbeam-sensors/overview **Q: The holes under the emitter and receiver; are they screw holes for mounting? Or part of the system? Ie: can they be blocked without effecting the unit** A: Yes, they are for mounting and can be blocked without issue. **Q: 1 piece - does it mean that I need 2 items to implement a solution? The photos shows always 2 items. Or package includes sender and receiver as 1p.** A: Package Includes Send and Receive components as 1 piece. **Q: Does the ir breakbeam detect transparent objects? if so, how well does it tell the difference between tranparent and opaque?** A: They are quite sensitive they will definitely detect opaque and probably transparent --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/41086123-adafruit-ir-break-beam-sensor-3mm-leds-ada2167](https://www.desertcart.be/products/41086123-adafruit-ir-break-beam-sensor-3mm-leds-ada2167) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-19*