--- product_id: 162777862 title: "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" brand: "taiss" price: "NT$1880" currency: TWD in_stock: true category: "Taiss" url: https://www.desertcart.tw/products/162777862-taiss-1-pair-photoelectric-switch-0-20m-through-beam-reflection store_origin: TW region: Taiwan --- # 0-20m sensing range Infrared laser beam IP66 weatherproof rating 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 **Brand:** taiss **Price:** NT$1880 **Availability:** ✅ In Stock ## Summary > 🔴 See the unseen: Next-level precision sensing for your smart space ## Quick Answers - **What is this?** 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 by taiss - **How much does it cost?** NT$1880 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/162777862-taiss-1-pair-photoelectric-switch-0-20m-through-beam-reflection) ## 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 - • **Compact & Durable:** Slim 12mm diameter sensor body fits tight spaces without compromise - • **Built for All Weather:** IP66-rated rugged design ensures reliable outdoor and indoor use - • **Plug & Play Integration:** Wide 6-36V DC compatibility with NPN normally open output for seamless setup - • **Versatile Application Ready:** Ideal for garage doors, security gates, industrial automation, and more - • **Precision Sensing at Distance:** Detect objects up to 20 meters with pinpoint accuracy ## Overview The Taiss Photoelectric Switch is a high-performance infrared beam sensor with a 0-20 meter detection range, designed for both indoor and outdoor environments thanks to its IP66 weatherproof rating. Operating on 6-36V DC with an NPN normally open output, it offers easy integration into security systems, industrial automation, and access control setups. Its compact 12mm diameter and included mounting brackets make installation straightforward, while the infrared laser beam ensures precise and reliable object detection. ## 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. ## 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 | | Best Sellers Rank | #68,789 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #24 in Photoelectric Sensors | | Date First Available | July 25, 2019 | | Item Weight | 5.6 ounces | | Item model number | E3F-20DNL | | Manufacturer | Taiss | | Package Dimensions | 5.83 x 3.86 x 1.34 inches | ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51pl-1i1zKL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/51ct35h7WcL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/61xvyg70GYL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/41xQk07AIWL.jpg) ## Available Options This product comes in different **Size, Style** options. ## 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. ## 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.tw/products/162777862-taiss-1-pair-photoelectric-switch-0-20m-through-beam-reflection](https://www.desertcart.tw/products/162777862-taiss-1-pair-photoelectric-switch-0-20m-through-beam-reflection) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-07-02*