---
product_id: 314432900
title: "SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack"
brand: "siterwell"
price: "€ 1.96"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.ie/products/314432900-siterlink-carbon-monoxide-detectors-battery-operated-co-detector-with-test
store_origin: IE
region: Ireland
---

# SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack

**Brand:** siterwell
**Price:** € 1.96
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack by siterwell
- **How much does it cost?** € 1.96 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/314432900-siterlink-carbon-monoxide-detectors-battery-operated-co-detector-with-test)

## Best For

- siterwell enthusiasts

## Why This Product

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

## Description

Full description not available

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SITERWELL |
| Style | 10 Year Battery |
| Power Source | Battery Powered |
| Color | Red, White |
| Alarm | Visual |
| Operating Humidity | 95 percent |
| Upper Temperature Rating | 50 Degrees Celsius |
| Sensor Type | Electrochemical |
| Manufacturer | SITERWELL ELECTRONICS CO.,LIMITED |
| Part Number | GS811-A |
| Item Weight | 9.6 ounces |
| Package Dimensions | 4.61 x 4.57 x 2.2 inches |
| Item model number | GS811-A |
| Size | 7-Pack |
| Item Package Quantity | 3 |
| Batteries Included? | No |

## Product Details

- **Brand:** SITERWELL
- **Style:** 10 Year Battery
- **Power Source:** Battery Powered
- **Color:** Red, White
- **Alarm:** Visual
- **Operating Humidity:** 95 percent
- **Upper Temperature Rating:** 50 Degrees Celsius
- **Sensor Type:** Electrochemical
- **Manufacturer:** SITERWELL ELECTRONICS CO.,LIMITED

## Images

![SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack - Image 1](https://m.media-amazon.com/images/I/514hH3FzX4L.jpg)
![SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack - Image 2](https://m.media-amazon.com/images/I/919p20L9t5L.jpg)
![SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack - Image 3](https://m.media-amazon.com/images/I/91vzzfjrt4L.jpg)
![SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack - Image 4](https://m.media-amazon.com/images/I/81n7oGTJ5fL.jpg)
![SITERLINK Carbon Monoxide Detectors Battery Operated, CO Detector with Test-Silence Button, 7-Year UL Listed Carbon Monoxide Alarm with Electrochemical Sensor, GS811-A, 1 Pack - Image 5](https://m.media-amazon.com/images/I/91iOJ+USGFL.jpg)

## Questions & Answers

**Q: Is this CO detector suitable for use in a motorhome?**
A: I'm buying it because this is the model that came in my motorhome, and I don't want to have to install a new bracket.

**Q: Should the green light stay on?**
A: Dear customer,
The green light is a status indicator to indicate the working status of the CO alarm. 
Start up state: When first power on, 30 seconds before the green light flash every 3 seconds, This is preheated state, 
30 seconds later the green light flashing every 30 seconds indicates the unit is functioning properly 
Normal operation: The green LED flashes every 30 seconds. It indicates the CO alarm is unit is functioning properly. 
Hope this helps you.

**Q: what is the diameter of the base of this product?**
A: Approximately 4 to 4.5”

**Q: I can get the light to stay on**
A: It should only blink every minute or 2

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect match
*by S***R on December 11, 2022*

Replaced out motorhome unit perfectly. No need to replace existing bracket. Arrived well packaged and ready to install...just add install date and you are done.

### ⭐⭐⭐⭐⭐ Very nice product
*by M***N on March 14, 2023*

This was a simple and easy item to install.

### ⭐⭐⭐⭐⭐ Great for the Price
*by J***K on January 5, 2023*

Work's Great

---

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**Shop now:** [https://www.desertcart.ie/products/314432900-siterlink-carbon-monoxide-detectors-battery-operated-co-detector-with-test](https://www.desertcart.ie/products/314432900-siterlink-carbon-monoxide-detectors-battery-operated-co-detector-with-test)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-14*