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Firex Hardwired Inter-Connectable 120-Volt Auxiliary Heat Detector 135 Degree with Battery Backup

$3997
  • Heat alarm requires hardwire installation
  • All interconnected alarms will sound when one alarm goes off
  • Best for pitched elevated heat areas such as ceilings and attics
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Product Overview

The Kidde FireX HD135F is a 120-Volt AC Wire In Heat Alarm that responds to temperature rather than smoke. The alarm will sound if temperatures rise above 135°F. The Kidde HD135°F is inter connectable. The interconnect system must not exceed the NFPA (National Fire Protection Association) limit of 18 initiating devices (Smoke, heat, CO, etc.) interconnected, it is still possible to interconnect 6 strobe lights and or relay modules. This unit includes a 5-year limited warranty and is UL Listed.
  • Receive an instant alert when temperatures exceed 135°F
  • Test button assures proper operation of the sensor's electronic circuitry, horn and battery function
  • Interconnects with up to 24 Kidde devices (of which 18 can be initiating), including smoke and carbon monoxide alarms
  • 9-Volt battery backup provides continuous protection even during power outages
  • Red LED flashes every 30 - 40 seconds to indicate proper operation
  • Quick-connect power harness for fast and easy installation
  • Tamper-proof pin helps deter tampering and theft
  • Replacement 9-Volt battery Kidde model 21025830
  • UL/CSFM Ref. HD135F
  • Not a smoke detector
  • Compatible with Kidde, FireX, Code One and Sentinel products
  • Kidde offers a full range of 120-Volt AC wire-in life safety products with interconnect capability to provide the most immediate and complete system available; when any 1 interconnected alarm is triggered, all interconnected alarms within the home sound an immediate warning
  • Learn how to install a smoke alarm
  • UL/CSFM Ref. Kidde Part HD135
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
5
Product Width (in.)
5

Details

Alarm Sensor Type
Dual-Sensor
Alarm Type
Heat
Alarm/Detector Features
Battery Back-Up,Hush Feature,Interconnected
Battery Type Required
9-volt
Commercial/Residential
Residential
Connector/Contact Type
None
Heat Detection Type
Fixed Temperature
Included
No additional components or accessories are included
Pack Size
3
Power Source
Hardwired
Returnable
90-Day
Voltage (volts)
120

Warranty / Certifications

Certifications and Listings
UL Listed

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.6
    out of 76 reviews
  • 97% recommend this product
Filter by:
Showing 1-10 of 76 reviews
The Kidde Heat Alarm was easy to install. Only took...
The Kidde Heat Alarm was easy to install. Only took about 5 min. to take down the old one and put in the new one. Also, came with a 9 volt battery which was nice. Nicely packaged and fast delivery. Didn't realize they recommend changing out detectors every 10 years.
by Dave
  • Verified Purchase
No more false alarms.
Fumes from my Street Rod would set off my house alarm,usually at 2 or 3 AM. My son in law (ex Firefighter) told me the make heat detectors. I bought one online and it was plug and play. Took just a couple minutes to install. No false alarms since then.
by flamer123
  • DIY
  • Verified Purchase
  • Recommended Product
by Leeann
    Battery was dead when opened box, had to buy new...
    Battery was dead when opened box, had to buy new battery
    by BK
    Response from Kidde ExpertSep 20, 2021
    Hello BK, Thanks for reaching out. We value your input and would like to assist if possible. Please call Kidde support at 1-800-880-6788. Open Monday through Friday from 8:00 AM – 8:00 PM EST. Saturday 9:00 AM – 3:00 PM EST. They are the experts and will be able to assist. Thank you.
    • Verified Purchase
    Rating would have been excellent except that one came with...
    Rating would have been excellent except that one came with a dead battery
    by KAT
    • Verified Purchase
    1 person found this helpful
    I used to get bulk discount on 6 or more,...
    I used to get bulk discount on 6 or more, you discontinued that, also I noticed a price increase in the two packs of 10.00 on the 9volt Almost the same price as the supply house I trade at. Check my history and you can see the decrease in alarms I purchase from you.
    by HomeDepotCustomer
    Response from Kidde ExpertJun 17, 2021
    Hello Home Depot Customer,
    This is a question for your local pro desk at home depot.
    • Verified Purchase
    by
    • DIY
    • Verified Purchase
    • Recommended Product
    this device was easy to install and works very well for what I wanted it to do.
    this device was easy to install and works very well for what I wanted it to do.
    by HomeDepotCustomer
    • Verified Purchase
    • Recommended Product
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by HomeDepotCustomer
    • Verified Purchase
    Fit exiting connections, works, as far as I can tell!...
    Fit exiting connections, works, as far as I can tell!
    by HomeDepotCustomer
    • Verified Purchase
    Showing 1-10 of 76 reviews