Can this be wired into the mains?

No. To connect to the main you need the FireAngel Pro FIREANGEL PRO HT-230 BATTERY BACKUP HEAT ALARM , which is mains powered and has a backup battery in the event of mains power failure. Amazon doesnt sell the, but you can get them cheap from screwfix

Can you send me the battery that wasn’t in the box?

The battery is built in and can't be replaced

can thiz be linked to other heat alarm

No. Also it states it lasts 10 years, I’ve had it replaced already and now the replacement alarm battery has gone with 5 years left on it. I now avoid FireAngel.

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FireAngel FA6720-R Heat Alarm/Detector for Kitchen with 10-Year Battery

FireAngel FA6720-R Heat Alarm/Detector for Kitchen with 10-Year Battery

Product ID: 422760695

Details

Alarm
Heat Alarm
Brand
Fireangel
Colour
White
Item weight
131 Grams
Material
Plastic
Number of items
1

🔇Silence button for false alarm muting

🔋10-year sealed battery life

🔥54°C-65°C heat detection range

€ 35.53

Duties & taxes included

In stock

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Description

🔥 Stay cool, stay safe — the kitchen heat alarm that’s always a step ahead!

LONG LASTING POWER - Equipped with a 10-year sealed battery, ensuring a decade of reliable fire safety without battery replacements.
PRECISION HEAT DETECTION - Detects dangerous heat levels (54°C-65°C) ideal for kitchens and humid spaces without false alarms from steam or dust.
CERTIFIED TRUSTED SAFETY - CE & UKCA marked, BS 5446-2:2003 certified, backed by a 5-year warranty—trusted by millions for home protection.
DISCREET FALSE ALARM CONTROL - Silence button lets you mute nuisance alerts from cooking fumes, maintaining peace of mind without compromising safety.
EFFORTLESS INSTALLATION REPLACEMENT - Quick twist-and-lock baseplate compatible with HT-630 model for seamless fitting and hassle-free upgrades.

The FireAngel FA6720-R Heat Alarm is a kitchen-optimized fire safety device designed to detect heat between 54°C and 65°C, avoiding false alarms from cooking fumes and humidity. Featuring a 10-year sealed battery, a silence button for muting false alerts, and easy installation with a twist-lock baseplate, it’s certified to rigorous UK and European safety standards and backed by a 5-year warranty. Perfect for domestic kitchens and humid environments where traditional smoke alarms fall short.

Specifications

ASIN	B09WB44VSK
Alarm	Heat Alarm
Best Sellers Rank	502 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Smoke Alarms
Brand	Fireangel
Colour	White
Country of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (885)
Included Components	1 x Baseplate, 1 x Heat Alarm complete with Sealed Battery, 1 x Instruction Manual
Item Dimensions D x W x H	11.8D x 11.8W x 4.1H centimetres
Item Highlight	1-Pack, Heat Detector for Kitchen, Fire Alarm for Home, FireAngel HT-630 Replacement
Item Type Name	Heat Alarm
Item Weight	131 Grams
Manufacturer	FireAngel
Manufacturer Warranty Description	5 year manufacturer's warranty.
Material	Plastic
Model Number	FA6720-R
Number of Items	1
Part Number	FA6720-R
Power source	Battery Powered
Product Style	Heat Alarm
UPC	816317006228
Unit Count	1.0 count

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