---
product_id: 670372067
title: "FA6620 Optical, Battery Powered Fire/Smoke Alarms for Home"
brand: "fireangel"
price: "€ 59.61"
currency: EUR
in_stock: true
category: "Fire Angel"
url: https://www.desertcart.sk/products/670372067-fa6620-optical-battery-powered-fire-smoke-alarms-for-home
store_origin: SK
region: Slovakia
---

# Optical smoke sensing tech Test/silence button for nuisance alarms 10-year sealed battery life FA6620 Optical, Battery Powered Fire/Smoke Alarms for Home

**Brand:** fireangel
**Price:** € 59.61
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of fire risks with smart, silent protection!

## Quick Answers

- **What is this?** FA6620 Optical, Battery Powered Fire/Smoke Alarms for Home by fireangel
- **How much does it cost?** € 59.61 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/670372067-fa6620-optical-battery-powered-fire-smoke-alarms-for-home)

## Best For

- fireangel enthusiasts

## Why This Product

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

## Key Features

- • **Sleep Easy Mode:** Silence nuisance alerts for 8 hours without compromising safety.
- • **Smart Smoke Detection:** Optical sensor spots slow-burning fires fast, cutting false alarms from cooking.
- • **Effortless Installation:** Twist-and-lock baseplate fits ceiling and replaces older models in seconds.
- • **Decade-Long Peace of Mind:** 10-year sealed battery means no replacements, no hassle.
- • **Certified Safety Assurance:** CE & UKCA marked with 5-year warranty for trusted home protection.

## Overview

The FireAngel FA6620 Optical Smoke Alarm 2-Pack features advanced photoelectric sensing for early detection of slow-burning fires, a 10-year sealed battery for lifetime reliability, and a user-friendly test/silence button to reduce nuisance alarms. Certified to UK and European safety standards, it offers easy installation and a 5-year warranty, making it the smart choice for modern home safety.

## Description

Designed as a replacement for the Fire Angel ST-622 / ST-620 smoke alarms, the FireAngel FA6620 Optical Smoke Alarm (available as a twin pack) is fitted with a 10-year lifetime sealed battery and equipped with an optical sensing chamber, providing a fast response to slow-burning fires. ENHANCED SENSING The optical smoke sensing chamber works by 'seeing' smoke as it enters the alarm—making it perfect for slow-burning fires with thick white smoke and less prone to false alerts from cooking fumes. It can still be subject to nuisance false alarms from steam and should not be placed near bathrooms or kitchens. SLEEP EASY If a low battery alert occurs at night, you can silence the smoke detector for 8 hours by pressing the test button. The alarm will be muted, but the red LED will continue to flash. The alarm will still detect smoke during Sleep Easy mode. Replace within 30 days. TEST/SILENCE To test your device, press the large test button for 5 seconds. A loud, high-pitched sound will verify the alarm is functioning correctly. During a known false alarm, press the test button for 5 seconds to temporarily silence the alarm for 8 minutes.

## Features

- SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees' smoke as it enters the alarm, providing a fast response to slow burning fires with thick white smoke.
- FEWER NUISANCE ALARMS: The advanced optical sensor ensures the FireAngel smoke alarm is less prone to false alerts from cooking fumes. Avoid placing near bathrooms or kitchens.
- 10-YEAR BATTERY: Each smoke alarm is fitted with a 10-year sealed battery, offering protection for the lifetime of the device without needing to change the batteries.
- EASY INSTALLATION: Fitted with a removable base plate, secure it to the ceiling using the screws provided. Push and twist to secure the device. The base plate is identical to the ST622, making replacements quick and easy.
- SAFETY ASSURED: The FA6620 smoke alarm holds CE and UKCA marks and is certified to BS EN 14604:2005+AC:2008. Suitable for domestic premises, including leisure accommodation vehicles, it comes with a 5-year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09W9WXBZL |
| ASIN  | B09W9WXBZL |
| Alarm | Smoke Alarm |
| Batteries  | 2 CR123A batteries required. (included) |
| Battery Average Life | 10 years |
| Battery Type | Lithium |
| Best Sellers Rank | #2,631 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Smoke Alarms |
| Brand | FireAngel |
| Built-In Media | 1 x Instruction Manual, 2 x Baseplate, 2 x Optical Smoke Alarms complete with Sealed Batteries |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,806) |
| Customer reviews | 4.4 4.4 out of 5 stars (4,806) |
| Date First Available  | 19 July 2024 |
| Enclosure Material | Plastic |
| Item Dimensions D x W x H | 11.8D x 11.8W x 3.2H centimeters |
| Item Highlight | 2-Pack, 10-Year Battery Smoke Alarm Detector, Replacing FireAngel ST-622/ST-620, Fire Alarms for Home |
| Item Type Name | Smoke Alarm |
| Item Weight | 138 Grams |
| Item model number  | FA6620-R-T2 |
| Language  | English |
| Manufacturer | FireAngel |
| Manufacturer  | FireAngel |
| Mfr Part Number | FA6620-R-T2 |
| Model Number | FA6620-R-T2 |
| Number of Items | 1 |
| Number of Packs | 4 |
| Power Source | Battery Powered |
| Product Dimensions  | 11.8 x 11.8 x 3.2 cm; 138 g |
| Product Style | New Gen Twin Pack |
| Sensor Type | Photoelectric |
| UPC | 816317006327 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** FireAngel
- **Colour:** White
- **Power source:** Battery Powered
- **Product dimensions:** 11.8D x 11.8W x 3.2H centimeters
- **Style:** New Gen Twin Pack

## Images

![FA6620 Optical, Battery Powered Fire/Smoke Alarms for Home - Image 1](https://m.media-amazon.com/images/I/51uAIAFZJrL.jpg)

## Available Options

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

## Frequently Bought Together

- FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White
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- FireAngel Heat Alarm with 10 Year Sealed For Life Battery, FA6720-R (HT-630 replacement, new gen), White

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-10-27*