---
product_id: 555599385
title: "Taiss/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: "€ 129.35"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/555599385-taiss-1-pair-0-20m-through-beam-reflection-optical-photoelectric
store_origin: SK
region: Slovakia
---

# 0-20m sensing range 6-36V DC wide voltage IP66 weatherproof rating Taiss/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:** € 129.35
**Availability:** ✅ In Stock

## Summary

> 🚪 Secure your space with invisible precision.

## Quick Answers

- **What is this?** Taiss/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?** € 129.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/555599385-taiss-1-pair-0-20m-through-beam-reflection-optical-photoelectric)

## 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 Yet Mighty:** Slim 12mm diameter and lightweight design fits discreetly anywhere.
- • **Plug-and-Play Simplicity:** Three-wire NPN normally open setup for quick, hassle-free integration.
- • **Wide Voltage Compatibility:** Operates seamlessly between 6-36V DC for versatile installation.
- • **Built to Brave the Elements:** IP66-rated weatherproof design ensures uninterrupted outdoor performance.
- • **Precision Detection at 20 Meters:** Reliable infrared beam sensing for flawless security and automation.

## 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 and indoor use, and a wide 6-36V DC operating voltage. Designed with a compact 12mm diameter and a 120cm cable, it offers easy installation and dependable proximity detection for gates, garage doors, industrial automation, and security systems.

## 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 |
|---------------|-------|
| Manufacturer | Taiss |
| Part number | E3F-20DNL |
| Item Weight | 159 g |
| Package Dimensions | 14.81 x 9.8 x 3.4 cm; 159 g |
| Item model number | E3F-20DNL |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Taiss/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.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-05*