Discontinued Product - No Compatible Replacement Available

This product has been discontinued and is no longer available for purchase. There are no directly compatible replacements, therefore any alternative products used will require replacement of the mounting bases and the mains cable connectors. All BRK branded alarms installed on the same circuit will need to be replaced as they will not be compatible with other alarm models.

The BRK 790MRL is a mains powered heat alarm with rechargeable lithium battery back-up. 

This alarm uses advanced thermistor sensing technology that is responsive to heat rather than smoke and is triggered when the temperature in the surrounding environment reaches a set level. This makes the product perfect for installation in kitchens as it detects rapid changes in temperature and removes the risk of false alarms caused by cooking fumes.

This product is supplied with a PUSH-FIT mounting base and has a 5-year warranty.

It can interconnect with up to 12 compatible smoke, heat and CO alarms and is suitable for use in a BS5839:6 Grade D1 system.


Key Features
> - 230V Mains Powered Heat Alarm - Tamper-Proof Rechargeable Lithium Battery Back-Up - Advanced Class A2 Thermistor Sensing Technology - Suitable for use as part of a BS5839:6 Grade D1 system - Can interconnect up to 12 smoke, heat and CO alarms - Central Test and Silence Button - Supplied with PUSH-FIT Base - 5 Year Warranty
> Meets the requirements of the 2022 Scottish Legislation for fire alarms in homes
More Information
ManufacturerBRK
MPN790MRL
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Model Number790MRL
Technology:Thermistor
Battery Type:Rechargeable Lithium
Alarm Sound Level:85db at 3 metres
Installation Positions:Ceiling
Operation AC/DC:AC
Operating Temperature:5°C (40°F) to 38°C (100°F)
Operating Humidity:10% to 85% relative
Storage Temperature:5°C (40°F) to 38°C (100°F)
Storage Humidity:10% to 85% relative
Product Dimensions:140mm (D) x 68mm (H)
Alarm Weight:249g
Base Weight:91g
Pack Dimensions:141mm (H) x 141mm (W) x 76mm (D)
Master Pack Quantity:10
Approvals:BS 5446-2: 2003