# Kidde Firex Hardwired Interconnected 120V AC Wire Auxiliary Heat Detector

**Brand:** [Kidde](https://shop.coreranger.com/brands/Kidde)
**Model #:** 21029895
**SKU:** HD-100594387
**Price:** $42.97 · in stock
**URL:** https://shop.coreranger.com/product/kidde-firex-hardwired-interconnected-120v-ac-wire-auxiliary-heat-detector-100594387

## Specifications

| Spec | Value |
|---|---|
| Included | No additional components or accessories are included |
| Pack Size | 3 |
| Returnable | 90-Day |
| Voltage (V) | 120 |
| Power Source | Hardwired |
| Product Depth (in.) | 2 in |
| Product Width (in.) | 5 in |
| Battery Type Required | 9-volt |
| Commercial/Residential | Home |
| Alarm/Detector Features | Battery Back-Up,Hush Button,Wireless Interconnect |
| Certifications and Listings | UL Listed |

## Description

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 degree F. The Kidde HD135 degree 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.

• 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