---
product_id: 691399582
title: "820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1"
brand: "chamberlain"
price: "₪467"
currency: ILS
in_stock: true
url: https://www.desertcart.co.il/products/691399582-820cb-replacement-garage-door-safety-sensor-2-pk-quantity-1
store_origin: IL
region: Israel
---

# Low-profile design for durability Universal compatibility since '97 Instant auto-reverse on obstruction 820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1

**Brand:** chamberlain
**Price:** ₪467
**Availability:** ✅ In Stock

## Summary

> 🚪 Upgrade your garage safety game—because peace of mind never goes out of style!

## Quick Answers

- **What is this?** 820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1 by chamberlain
- **How much does it cost?** ₪467 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/691399582-820cb-replacement-garage-door-safety-sensor-2-pk-quantity-1)

## 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

- • **Safety First, Always:** Automatically reverses door on obstruction—protect your home and loved ones effortlessly.
- • **Seamless Compatibility:** Works flawlessly with Chamberlain, LiftMaster & Craftsman openers—upgrade without hassle.
- • **Complete Installation Kit:** Includes 2 sensors, mounting brackets, 18-inch extension wire, and clear instructions for quick setup.
- • **Sleek, Low-Profile Design:** Discreet sensors minimize misalignment risks, keeping your garage door running smoothly.
- • **Trusted Quality & Certification:** UL-certified and proudly made in the USA for reliable, long-lasting performance.

## Overview

The 820CB Replacement Garage Door Safety Sensor 2-Pack offers universal compatibility with Chamberlain, LiftMaster, and most Craftsman garage door openers manufactured after 1997. Featuring a low-profile design to reduce misalignment, these UL-certified sensors automatically reverse the door upon obstruction, enhancing safety. The package includes two sensors, mounting brackets, an 18-inch extension wire, and an instruction manual for easy installation, all made in the USA.

## Description

820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1

## Features

- For use with every Chamberlain garage door opener manufactured after 1997
- Enhanced troubleshooting, most intuitive safety reversing sensors
- Low profile reduces risk of being knocked out of alignment
- Whenever there is an obstruction, the garage door will automatically reverse
- Compatible with Chamberlain, LiftMaster and most Craftsman garage door openers
- Includes 2 sensors, mounting brackets, 18 inches of extension wire, instruction manual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Recommended Uses For Product | Preventing accidents and reversing garage doors upon obstruction |
| Specification Met | UL |
| UPC | 012381197460 |
| Global Trade Identification Number | 00012381197460 |
| Number of Pieces | 2 |
| Manufacturer | CHAMBERLAIN CORP |
| Department | Unisex-Adult |
| Country of Origin | USA |
| Item model number | 820CB |
| Product Dimensions | 5.28 x 2.9 x 3.15 cm; 290 g |
| ASIN | B09GB6JHRR |

## Product Details

- **Material:** Metal
- **Brand:** Chamberlain
- **Colour:** Black
- **Exterior Finish:** Black
- **Installation Type:** Screw-In

## Images

![820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1 - Image 1](https://m.media-amazon.com/images/I/51dXnQ5v-SL.jpg)

## Available Options

This product comes in different **Colour** options.

## Questions & Answers

**Q: remote open the door but wont close it  keep coming back up, but i can close it from the inside ,do you think this will solve the problem ?liftmast**
A: If you're able to close the door by holding down the button on the wall , then yes. However, it could be bad wiring ... maybe a bad connection. I see lots of time people use electrical tape and the adhesive actually breaks the connection over time. Try resplicing the connections if they are spliced first. If there is no splice, then it's possible the eyes are bad. To test them... use a newer 9volt battery. Detach both of the sensors and connect the matching wires together. Connect the wire with the black line to the positive side and the white to the negative. Line them so they are facing each other. If both lights come on then it's not the eyes. Could be a bad wire that is pinched or a bad circuit board on the motor unit. Good luck.

**Q: do these sensors come with wires attached to them ?**
A: 3 foot pigtails. You'll need to have wire from your opener to these and then splice them.

**Q: will they work for a craftsman opener ?**
A: Yes, I used my with a Craftsman and it worked perfect.

**Q: Could I use this sensor to light up a light when the sensor is activated?**
A: No. it has a circuit board in the door opening. It is not working like a switch but if the light is already on the garage door opener then that light will come on

## Frequently Bought Together

- Chamberlain 820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1
- 100 Feet Universal Garage Door Wire 2 Conductor Bell Wire Fits for Control Station/Sensors,24/2 AWG
- 41A5034 Safety Sensor Kit, Replacement for Craftsman/Chamberlain/Liftmaster Garage Door Sensor, Compatible with Liftmaster/Chamberlain/Craftsman Garage Door openers Made After 1997

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-01-31*