230V AC. Mains-powered with battery backup. Can be hardwire interlinked with up to 30 smoke and heat alarms so that they alarm in unison. Cutting edge design style fits seamlessly into the modern home environment. Ideal for areas where smoke alarms are not suitable such as kitchens, attics and garages. Interlinked when Hardwired Compliant with BS 5446-2: 2003. Standard 230V AC Mains-Powered with Battery Backup 10-Year Sealed Tamperproof Lithium Integrated Battery 85dBA Alarm at 3m Test/Hush Button Large Easy to Use Button Ultra-Slim Stylish Design

Price: £31.99 from Screwfix

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Stockist	Product Name	Price
Screwfix	FireAngel Pro FireAngel PRO HT-230 Mains Standalone Thermistek Heat Alarm	£31.99	Visit Store