---
product_id: 671916709
title: "Optical Smoke Alarm - 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"
brand: "fireangel"
price: "24488CFA"
currency: XOF
in_stock: true
category: "Fireangel"
url: https://www.desertcart.sn/products/671916709-optical-smoke-alarm-fa6620-10-year-battery-smoke-alarms-home
store_origin: SN
region: Senegal
---

# 10-year sealed lithium battery advanced optical smoke sensor quick twist & install baseplate Optical Smoke Alarm - 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

**Brand:** fireangel
**Price:** 24488CFA
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Optical Smoke Alarm - 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 by fireangel
- **How much does it cost?** 24488CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/671916709-optical-smoke-alarm-fa6620-10-year-battery-smoke-alarms-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

- • **Smart Silence & Test:** One-touch test/silence button keeps nuisance alarms in check without compromising safety.
- • **Effortless Installation:** Twist-and-lock baseplate fits ceiling in minutes—no electrician needed.
- • **Decade-Long Peace of Mind:** Built-in 10-year sealed lithium battery means zero battery swaps—ever.
- • **Precision Smoke Detection:** Optical sensor spots slow-burning fires early, cutting false alarms from cooking fumes.
- • **Certified Safety Assurance:** CE & UKCA marked, BS EN 14604:2005+AC:2008 certified for trusted home protection.

## Overview

The FireAngel FA6620 Optical Smoke Alarm combines advanced optical sensing technology with a 10-year sealed lithium battery, delivering reliable early fire detection with minimal false alarms. Designed for easy ceiling installation via a twist-lock baseplate, it meets rigorous UK and European safety standards and includes a convenient test/silence button for user-friendly operation. Ideal for modern homes seeking long-term, hassle-free fire safety.

## Description

FireAngel Optical Smoke Alarm - 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 : desertcart.ae: Tools & Home Improvement

## 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 |
|---------------|-------|
| Manufacturer | FireAngel |
| Part number | FA6620-R |
| Item Weight | 138 g |
| Batteries | 1 CR123A batteries required. (included) |
| Item model number | FA6620-R |
| Size | Single Pack |
| Color | White |
| Style | New Gen Single |
| Material | Plastic |
| Pattern | Single |
| Shape | Circular |
| Power source type | Battery Powered |
| Installation Method | Install in a matter of minutes with only 2 screws required (not included) to secure the baseplate, then twist the alarm in to place |
| Item Package Quantity | 1 |
| Cutting Diameter | 118 Millimeters |
| Included components | 1 x Baseplate, 1 x Instruction Manual, 1 x Optical Smoke Alarm complete with Sealed Lithium Battery |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| Item diameter | 118 Millimeters |

## Product Details

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

## Images

![Optical Smoke Alarm - 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 - Image 1](https://m.media-amazon.com/images/I/51WydtnJICL.jpg)

## Frequently Bought Together

- FireAngel Optical Smoke Alarm - 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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**Shop now:** [https://www.desertcart.sn/products/671916709-optical-smoke-alarm-fa6620-10-year-battery-smoke-alarms-home](https://www.desertcart.sn/products/671916709-optical-smoke-alarm-fa6620-10-year-battery-smoke-alarms-home)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-22*