---
product_id: 48973640
title: "771REV Photocells Infrared Safety Sensors, 4.5 cm*19.5 cm*8.5 cm,Black"
brand: "chamberlain"
price: "VT20407"
currency: VUV
in_stock: true
reviews_count: 13
category: "Chamberlain"
url: https://www.desertcart.vu/products/48973640-771rev-photocells-infrared-safety-sensors-4-5-cm-19-5
store_origin: VU
region: Vanuatu
---

# Low 20mA power draw Compact 4.5x19.5x8.5 cm size IP44 splash & dust resistant 771REV Photocells Infrared Safety Sensors, 4.5 cm*19.5 cm*8.5 cm,Black

**Brand:** chamberlain
**Price:** VT20407
**Availability:** ✅ In Stock

## Summary

> 🚪 Elevate your entryway safety with smart, splash-proof precision!

## Quick Answers

- **What is this?** 771REV Photocells Infrared Safety Sensors, 4.5 cm*19.5 cm*8.5 cm,Black by chamberlain
- **How much does it cost?** VT20407 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/48973640-771rev-photocells-infrared-safety-sensors-4-5-cm-19-5)

## Best For

- chamberlain enthusiasts

## Why This Product

- Trusted chamberlain brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy-Efficient Operation:** Consumes minimal power with a max draw of just 20mA, saving energy without compromise.
- • **Plug-and-Play Installation:** Simple replacement for existing sensors with no rewiring needed—upgrade your security in minutes.
- • **Durable Weatherproof Design:** IP44 rating ensures reliable performance rain or shine, indoors or out.
- • **Seamless Safety Integration:** Effortlessly detects obstacles to prevent accidents during door closing.
- • **Universal Chamberlain Compatibility:** Works flawlessly with garage, swinging, and sliding door automation systems.

## Overview

The Chamberlain 771REV Photocells are compact, infrared safety sensors designed to detect obstacles during door closing, enhancing security for garage, swinging, and sliding doors. Featuring IP44 splash-proof protection and low power consumption (20mA max), these sensors offer durable, energy-efficient performance. Compatible with Chamberlain automation systems, they provide easy, plug-and-play installation for seamless safety upgrades.

## Description

Shop Chamberlain 771REV Photocells Infrared Safety Sensors, 4.5 cm*19.5 cm*8.5 cm,Black. Free delivery on eligible orders of £20 or more.

Review: Bought for set of old electric gates. - Bought for an old pair of electric gates. The just popped into replace 5he existing pair without changing wiring. Very pleased.
Review: Works well - Replacement for a set that got damaged, easy install and work perfectly

## Features

- Functionality: Chamberlain 771REV Photocells detect obstacles during the closing procedure, for increase safety and security
- Compatibility: Compatible with Chamberlain automation systems, including garage doors, swinging doors and sliding doors
- Special Features: IP44 Protection means that Chamberlain photocells are splash-proof, and protected against solid objects that are bigger than 1mm in size. The current draw is 20mA maximum
- What's in the Box: Each product contains two Chamberlain 771REV Photocells
- Chamberlain is one of the world's leading manufacturers for Garage door openers and gate openers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EYYAL1G |
| Antenna Location | Residential Security (Garage and Door Safety, Intrusion Detection) |
| Battery Description | Battery not included |
| Best Sellers Rank | 348,196 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,337 in Gate Hardware |
| Brand | CHAMBERLAIN |
| Colour | Black |
| Compatible Devices | Chamberlain automation systems, garage doors, swinging doors, sliding doors |
| Customer Reviews | 4.5 4.5 out of 5 stars (247) |
| Global Trade Identification Number | 04014243213444 |
| Manufacturer | Chamberlain |
| Maximum Range | 10 Metres |
| Model Number | 771REV |
| Mounting Type | Wall Mount |
| Part Number | 771REV |
| Power source | Corded Electric |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** CHAMBERLAIN
- **Colour:** Black
- **Maximum range:** 10 Metres
- **Mounting type:** Wall Mount
- **Power source:** Corded Electric

## Images

![771REV Photocells Infrared Safety Sensors, 4.5 cm*19.5 cm*8.5 cm,Black - Image 1](https://m.media-amazon.com/images/I/71o3ojms0xS.jpg)

## Questions & Answers

**Q: will it work without fitting the sensors**
A: Sorry I didn't get mine fitted because of a problem not connected with the photocells.

**Q: is the photocell sensitivity adjustable?**
A: No adjustment at all.  You either break the beam, or you don't.

**Q: hi I have the photocells 771e-03. are these equivalent to you for sale?**
A: worked fine as a replacement.

**Q: Will they work on my liftmaster gates. The sensors I have are broken, but look the same**
A: The 771REV-01 also works on the LiftMaster gates. If your old sensors also use the two wiring systems.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bought for set of old electric gates.
*by C***E on 27 September 2025*

Bought for an old pair of electric gates. The just popped into replace 5he existing pair without changing wiring. Very pleased.

### ⭐⭐⭐⭐⭐ Works well
*by J***G on 31 July 2023*

Replacement for a set that got damaged, easy install and work perfectly

### ⭐⭐⭐⭐⭐ Easy to install
*by E***D on 29 November 2019*

Perfect item. Works perfectly

## Frequently Bought Together

- Chamberlain 771REV Photocells Infrared Safety Sensors, 4.5 cm*19.5 cm*8.5 cm,Black
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**Shop now:** [https://www.desertcart.vu/products/48973640-771rev-photocells-infrared-safety-sensors-4-5-cm-19-5](https://www.desertcart.vu/products/48973640-771rev-photocells-infrared-safety-sensors-4-5-cm-19-5)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*