---
product_id: 670372067
title: "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"
brand: "fireangel"
price: "307 Lei"
currency: RON
in_stock: true
reviews_count: 6
category: "Fireangel"
url: https://www.desertcart.ro/products/670372067-fireangel-optical-smoke-alarm-2-pack-fa6620-10-year-battery
store_origin: RO
region: Romania
---

# Optical smoke sensing tech Test/silence button for nuisance alarms 10-year sealed battery life 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

**Brand:** fireangel
**Price:** 307 Lei
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of fire threats with smart, silent, decade-long protection!

## Quick Answers

- **What is this?** 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 by fireangel
- **How much does it cost?** 307 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/670372067-fireangel-optical-smoke-alarm-2-pack-fa6620-10-year-battery)

## 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

- • **Effortless Setup:** Twist-and-lock installation with removable baseplate makes upgrading or replacing a breeze.
- • **Silent Peace Mode:** Instantly mute nuisance alarms for 8 hours with the test/silence button—sleep easy, stay safe.
- • **Smart Smoke Vision:** Advanced optical sensor detects slow-burning fires fast while cutting false alarms from cooking fumes.
- • **Decade-Long Defense:** Set it and forget it with a 10-year sealed lithium battery—no replacements, no hassle.
- • **Certified Safety Assurance:** CE & UKCA marked, BS EN 14604 certified, backed by a 5-year warranty for trusted protection.

## Overview

The FireAngel Optical Smoke Alarm 2-Pack (FA6620) features cutting-edge optical sensing technology for rapid detection of slow-burning fires, paired with a 10-year sealed lithium battery for maintenance-free safety. Designed to minimize false alarms from cooking fumes, it includes a convenient test/silence button to mute nuisance alerts temporarily. Easy to install with a twist-lock baseplate, this certified smoke alarm offers reliable, long-lasting home protection backed by a 5-year warranty.

## 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.

Review: Good - Good quality
Review: I'm a loyal FireAngel customer and these smoke alarms maintain the brand's excellent reputation. The quality and reliability are second to none, which is exactly what you want from a safety device. Installation is straightforward and they're up and running quickly. The optical sensor technology works perfectly - sensitive enough to detect real smoke threats but smart enough to ignore false alarms like vaping, which is a huge advantage over cheaper detectors. The alarm tone strikes the perfect balance - loud enough to wake you and alert the household, but not so overwhelming that it's painful. There's no annoying constant beeping during normal operation either. The 10-year battery life is fantastic - set and forget peace of mind. The white finish looks clean and unobtrusive on the ceiling. Pro tip: pair these with magnetic mounting pads (as mentioned in my other reviews) for incredibly easy installation without drilling. These are premium smoke alarms that justify the price with superior performance and reliability. When it comes to fire safety, I wouldn't trust anything else. Highly recommended for anyone serious about home safety.

## 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 |
| Batteries | 2 CR123A batteries required. (included) |
| Batteries  | 2 CR123A batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| Best Sellers Rank | #37,820 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #51 in Smoke Alarms |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,258) |
| Customer reviews | 4.4 4.4 out of 5 stars (4,258) |
| Cutting Diameter | 118 Millimeters |
| Date First Available | 19 July 2024 |
| Date First Available  | 19 July 2024 |
| Included components | 1 x Instruction Manual, 2 x Baseplate, 2 x Optical Smoke Alarms complete with Sealed Batteries |
| 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 |
| Item Weight | 138 g |
| Item diameter | 118 Millimeters |
| Item model number | FA6620-R-T2 |
| Item model number  | FA6620-R-T2 |
| Language  | English |
| Manufacturer | FireAngel |
| Manufacturer  | FireAngel |
| Material | Plastic |
| Part number | FA6620-R-T2 |
| Pattern | Single |
| Power source type | Battery Powered |
| Product Dimensions  | 11.8 x 11.8 x 3.2 cm; 138 g |
| Shape | Circular |
| Size | Twin Pack |
| Style | New Gen Twin Pack |

## 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

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

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐ Good
*by N***A on 31 December 2025*

Good quality

### ⭐⭐⭐⭐⭐ Review
*by M***H on 15 September 2025*

I'm a loyal FireAngel customer and these smoke alarms maintain the brand's excellent reputation. The quality and reliability are second to none, which is exactly what you want from a safety device. Installation is straightforward and they're up and running quickly. The optical sensor technology works perfectly - sensitive enough to detect real smoke threats but smart enough to ignore false alarms like vaping, which is a huge advantage over cheaper detectors. The alarm tone strikes the perfect balance - loud enough to wake you and alert the household, but not so overwhelming that it's painful. There's no annoying constant beeping during normal operation either. The 10-year battery life is fantastic - set and forget peace of mind. The white finish looks clean and unobtrusive on the ceiling. Pro tip: pair these with magnetic mounting pads (as mentioned in my other reviews) for incredibly easy installation without drilling. These are premium smoke alarms that justify the price with superior performance and reliability. When it comes to fire safety, I wouldn't trust anything else. Highly recommended for anyone serious about home safety.

### ⭐⭐⭐⭐⭐ Review
*by S***C on 20 January 2026*

Great value for money. Easy to fit. Not too large not too small.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-28*