





🔥 Stay ahead of danger with smart heat detection that never quits!
The First Alert HD6135FB Hardwired Heat Alarm combines advanced rate-of-rise sensing and microprocessor control to detect dangerous heat levels quickly and reduce false alarms. Designed for areas unsuitable for smoke alarms, it features a loud 85-decibel siren, 120V hardwired power with 9V battery backup, and can interconnect with up to 18 compatible devices. Remote testing and silencing via household remotes add modern convenience, making it a reliable, smart choice for comprehensive home fire safety.







| Brand | First Alert |
| Style | Heat Alarm |
| Power Source | Battery Powered |
| Color | White |
| Product Dimensions | 2"D x 2"W x 2"H |
| Item Weight | 0.6 Pounds |
| Alarm | Audible |
| Compatible Devices | Angle Grinder |
| Global Trade Identification Number | 00029054508102 |
| Material | Plastic |
| Number of Items | 1 |
| Manufacturer | First Alert / BRK Brands Inc. |
| UPC | 029054508102 029054509321 |
| Part Number | HD6135FB |
| Item Weight | 9.6 ounces |
| Item model number | HD6135FB |
| Is Discontinued By Manufacturer | No |
| Size | No Size |
| Voltage | 120 Volts |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Cutting Diameter | 5.5 Inches |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
| Assembled Diameter | 5.5 Inches |
| National Stock Number | 6350-01-588-7592 |
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