--- product_id: 555599385 title: "/1 Pair 0-20M Through-Beam Reflection Optical Photoelectric Beam Sensor NPN NO photoelectric Sensor Switch 6-36V Proximity Switch Three Lines Length with Infrared Ray Beam E3F-20DNL" brand: "taiss" price: "€ 68.54" currency: EUR in_stock: true reviews_count: 5 category: "Taiss" url: https://www.desertcart.pt/products/555599385-1-pair-0-20m-through-beam-reflection-optical-photoelectric-beam store_origin: PT region: Portugal --- # 0-20m sensing range 6-36V DC wide voltage IP66 weatherproof rating /1 Pair 0-20M Through-Beam Reflection Optical Photoelectric Beam Sensor NPN NO photoelectric Sensor Switch 6-36V Proximity Switch Three Lines Length with Infrared Ray Beam E3F-20DNL **Brand:** taiss **Price:** € 68.54 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your automation game with precision sensing that never quits! ## Quick Answers - **What is this?** /1 Pair 0-20M Through-Beam Reflection Optical Photoelectric Beam Sensor NPN NO photoelectric Sensor Switch 6-36V Proximity Switch Three Lines Length with Infrared Ray Beam E3F-20DNL by taiss - **How much does it cost?** € 68.54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/555599385-1-pair-0-20m-through-beam-reflection-optical-photoelectric-beam) ## Best For - taiss enthusiasts ## Why This Product - Trusted taiss brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** Compact 12mm diameter and included mounting brackets make setup a breeze. - • **Plug & Play Versatility:** Wide 6-36V DC compatibility with NPN normally open output for seamless integration. - • **Multi-Industry Powerhouse:** Perfect for gates, garage doors, industrial automation, and security systems—stay ahead of the curve. - • **Built to Brave the Elements:** IP66-rated weatherproof design guarantees performance rain or shine, indoors or outdoors. - • **Precision Sensing at Distance:** Reliable detection up to 20 meters ensures flawless automation and security. ## Overview The Taiss E3F-20DNL is a robust photoelectric beam sensor featuring a 0-20 meter infrared sensing range, IP66 weatherproof rating for reliable outdoor/indoor use, and a wide 6-36V DC power supply. Designed for security, industrial automation, and proximity detection, it offers easy installation with included mounting brackets and a compact form factor. ## Description Photoelectric Switch can be applied in security system, manufacturing industry. Weatherproof (IP66) construction for indoor/outdoor usage.Safety sensor for garage doors or outdoor gates,Overhead door security sensor,Industrial automation, Detect small objects on manufacturing line,Entry detection for store fronts,Assist in measuring parking distance,Alarm sensor etc. Review: Detector infrarojo - Se puede coloque a 5 mts de detection y trabaja muy bien Review: Easy to setup and precise - Work great for sensing fairly precisely when an assembly part moves into proper position, so an operator can then activate the assembly machine. Easy to setup and adjust. ## Features - This product is widely used in outdoors gates, garage doors, Weatherproof (IP66) construction for indoor/outdoor usage etc. - Supply Voltage:6-36V DC;Type : NPN（normally open ）;Wire Type : DC 3 Wire,Proximity-sensing / Opposite Type - Sensory Distance : 0-20m；Sending Light : Infrared Rays;Current : 300mA;Thread diameter: 12mm/0.47" - Body Size：66mm x12mm/2.6" x0.47"(Max.D*L);Cable Length : 120cm/47";Weight : 70g - Package Content: 1 Pair x Photoelectric Switch+2 x Mounting Bracket ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07VPSSLBR | | ASIN | B07VPSSLBR | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #42,020 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #100 in Motion Detectors | | Customer Reviews | 4.2 4.2 out of 5 stars (71) | | Customer reviews | 4.2 4.2 out of 5 stars (71) | | Date First Available | 5 August 2019 | | Date First Available | 5 August 2019 | | Item Package Quantity | 1 | | Item Weight | 159 g | | Item model number | E3F-20DNL | | Item model number | E3F-20DNL | | Manufacturer | Taiss | | Manufacturer | Taiss | | Package Dimensions | 14.81 x 9.8 x 3.4 cm; 159 g | | Package Dimensions | 14.81 x 9.8 x 3.4 cm; 159 g | | Part number | E3F-20DNL | ## Images ![/1 Pair 0-20M Through-Beam Reflection Optical Photoelectric Beam Sensor NPN NO photoelectric Sensor Switch 6-36V Proximity Switch Three Lines Length with Infrared Ray Beam E3F-20DNL - Image 1](https://m.media-amazon.com/images/I/51pl-1i1zKL.jpg) ## Questions & Answers **Q: Could you please provide instructions about wiring and usage?** A: There is an attached wiring diagram on the switch connecting wire.This product is widely used in outdoors gates, garage doors, Weatherproof (IP66) construction for indoor/outdoor usage etc. Supply Voltage:6-36V DC;Type : NPN（normally open ）;Wire Type : DC 3 Wire,Proximity-sensing / Opposite Type Sensory Distance : 0-20m；Sending Light : Infrared Rays;Current : 300mA;Thread diameter: 12mm/0.47" **Q: will these work as single unit and trigger if object is sensed by the beam?** A: Yes. It will send a signal every time the beam is broken thru a 3rd wire. You do have to have a counter or something attached to accept the signal **Q: what is the switching speed of the npn receiver?** A: The actual switching time is about 2-3 microseconds on the one I've bought, but the minimum "break" time it responds to reliably seems to be at about 10 milliseconds with a 10K load resistor. you could probably increase the sensitivity with a larger load resistor but I haven't tried. **Q: This product is not infrared!. it is red laser dot. do you have one that is really infrared (>800nm)?** A: I don't have one, sorry. Issue an open ended purchase order and I will develop one just for you. Thanks. ## Customer Reviews ### ⭐⭐⭐⭐ Detector infrarojo *by T***S on 26 February 2024* Se puede coloque a 5 mts de detection y trabaja muy bien ### ⭐⭐⭐⭐⭐ Easy to setup and precise *by G***T on 23 June 2025* Work great for sensing fairly precisely when an assembly part moves into proper position, so an operator can then activate the assembly machine. Easy to setup and adjust. ### ⭐⭐⭐⭐⭐ How to test *by A***R on 2 January 2026* Spent time figuring out how to work this Sensor and if it works. So far it is great. See video for more details. ## Frequently Bought Together - Taiss/1 Pair photoelectric Switch 0-20M Through-Beam Reflection Optical Photoelectric Beam Sensor NPN NO photoelectric Sensor Switch 6-36V Proximity Switch with Infrared Ray Beam E3F-20DNL-Z-12MM - mxuteuk 2pcs JQX-13FL DC 12V Coil 8 Pin 10A DPDT LED Indicator Electromagnetic Power Relay, with Base, with DIN Rail Slotted Aluminum - Taiss/ 1 Pair Photoelectric Sensor M18 Infrared Ray Through-Beam Reflection Optical Photoelectric Switch Sensor NPN NO 6-36VDC Proximity Switch Inductive Distance 5M with mounting Bracket E3F-5DN1 --- ## 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.pt/products/555599385-1-pair-0-20m-through-beam-reflection-optical-photoelectric-beam](https://www.desertcart.pt/products/555599385-1-pair-0-20m-through-beam-reflection-optical-photoelectric-beam) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-29*