---
product_id: 671916709
title: "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"
brand: "fireangel"
price: "647 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Fireangel"
url: https://www.desertcart.ro/products/671916709-fireangel-optical-smoke-alarm-fa6620-10-year-battery-smoke-alarms
store_origin: RO
region: Romania
---

# 10-year sealed battery life Optical smoke sensing tech Quick twist & lock install 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

**Brand:** fireangel
**Price:** 647 Lei
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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 by fireangel
- **How much does it cost?** 647 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/671916709-fireangel-optical-smoke-alarm-fa6620-10-year-battery-smoke-alarms)

## 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 Smoke Detection:** Optical sensor 'sees' slow-burning fires early while cutting down false alarms from cooking fumes.
- • **Effortless Installation:** Removable baseplate with push-twist lock makes replacement or upgrade a breeze.
- • **Sleep Easy Silence Mode:** Temporarily mute nuisance alarms for 8 hours without compromising safety.
- • **Decade-Long Peace of Mind:** Sealed 10-year lithium battery means zero hassle and uninterrupted home protection.
- • **Certified Safety Assurance:** CE & UKCA marked, BS EN 14604 certified, backed by a 5-year warranty for trusted reliability.

## Overview

The FireAngel FA6620 Optical Smoke Alarm features advanced photoelectric sensing for early detection of slow-burning fires, a 10-year sealed lithium battery ensuring a decade of maintenance-free safety, and a user-friendly push-twist installation system. Designed to minimize false alarms from cooking fumes, it includes a silence/test button with an 8-hour mute function and meets rigorous UK and EU safety certifications, making it a reliable, long-lasting choice for modern homes.

## Description

Designed as a replacement for the Fire Angel ST-622 / ST-620 smoke alarms, the FireAngel FA6620 Optical Smoke Alarm 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.

Review: Longevity of 1st pair of around 15 years
Review: Decent

## 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 | B09V5C7GHF |
| Alarm | Smoke Alarm |
| Best Sellers Rank | #19,519 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Smoke Alarms |
| Brand | Fireangel |
| Built-In Media | 1 x Baseplate, 1 x Instruction Manual, 1 x Optical Smoke Alarm complete with Sealed Lithium Battery |
| Color | White |
| Colour | White |
| Customer Reviews | 4.4 out of 5 stars 7,332 Reviews |
| EU Spare Part Availability Duration | 10 Years |
| Enclosure Material | Plastic |
| Item Dimensions D x W x H | 3.2D x 11.8W x 11.8H centimeters |
| Item Type Name | Smoke Alarm |
| Item Weight | 138 Grams |
| Item weight | 138 Grams |
| Manufacturer | FireAngel |
| Model Number | FA6620-R |
| Operating Humidity | up to 90% |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product Style | New Gen Single |
| Product dimensions | 3.2D x 11.8W x 11.8H centimeters |
| Sensor Type | Photoelectric |
| Style | New Gen Single |
| UPC | 816317006242 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 38 Degrees Celsius |

## 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

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Longevity of 1st pair of around 15 years
*by A***R on 6 December 2025*



### ⭐⭐⭐⭐ Decent
*by D***L on 28 January 2026*



### ⭐⭐⭐⭐⭐ reliable and easy to install
*by M***E on 3 December 2025*



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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-09*