Skip to content
Contact About Us Help Guides & Information Trade Accounts
⚡ Rock Bottom Prices. Maximum Choice.⚡
⚡ Rock Bottom Prices. Maximum Choice.⚡
BG Electrical Alarms - Mains Powered Heat Alarm
BG Electrical Alarms - Mains Powered Heat Alarm
BG Electrical Alarms - Mains Powered Heat Alarm
BG Electrical Alarms - Mains Powered Heat Alarm

BG Electrical Alarms - Mains Powered Heat Alarm

Shop All BG Electrical
SKU SDMHA-02-LUC
£23.99 - £149.94
£49.98
£23.99
£23.99 - £127.49
£23.99
Availability:
1+ in stock, ready to be shipped
Availability:
1+ in stock, ready to be shipped
Availability:
1+ in stock, ready to be shipped
Pack Size: Pack of 1

Est Delivery 3 - 7 Working Day

Shipping information


We work hard to get your order out quickly and securely.

  • Fast Dispatch – Orders are processed promptly once placed.
  • Trusted Couriers – We use reliable delivery partners.
  • Clear Costs – Shipping is calculated at checkout, based on size and weight.
  • Peace of Mind – We’ll keep you updated every step of the way.
Returns & warranty
  • 28 Days to Return – If it’s not right, just bring it back in its original condition.
  • Quick Refunds – Once we’ve checked your return, we’ll refund you promptly.
  • Clear & Fair – Some items (like cut-to-size or opened packaging) can’t be returned, but we’ll always let you know upfront.

The BG mains powered heat alarm can be used to provide safety where a smoke alarm may not be suitable. Heat alarms are ideal for use in kitchens and other rooms where smoke or steam may be present, and will alert you if there is a significant rise in temperature which may indicate a fire is about to break out. This alarm can be interconnected with the wider range of BG interconnected alarms for complete coverage.

Key Features

  • Hardwired heat alarm wires directly in to your home electric system
  • Interconnecting: connect up to 24 heat and smoke alarms, or up to 12 alarms when including a CO alarm
  • Dust cover (included) prevents contamination of the device during installation
  • 9V battery back up ensures the alarm will operate if mains power is lost
  • Hush function allows the alarm to be temporarily silenced
  • Test function, fault and low battery warnings to assist with alarm maintenance

Technical Specifications

Part Name (<50) SDMHA

Dimensions

Product Width (mm) 132
Product Height (mm) 56
Product Weight (kg) 0.269
🔨 Trade Prices for Everyone

Why pay more? We keep our prices rock-bottom so whether you’re a trade professional or DIYer, you always get the best deal.

🏠 Local & Independent


We’re Northampton’s trusted family-run store, supporting local people with great products and honest service.

🚚 Easy Pickup or Local Delivery

Order online and collect in-store, or get heavy items like blocks and cement delivered straight to your site.

👍 Friendly, Helpful Service

Our staff know their stuff — whether it’s building materials, DIY or garden, we’re here to help you get the job done.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare