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White round ceiling heat alarm with LED and test button

Heat Detector 135°F 85dB 120V 9V Backup Interconnect 18 Alarms

SKU CH-DZ08-W7VRT

Hardwired heat detector triggers at 135°F with 85dB alarm, 9V backup, and interconnects up to 18 alarms

  • Detects heat above 135°F with 85dB alarm
  • Hardwired 120V power with 9V battery backup
  • Interconnects up to 18 Kidde alarms together
  • Red LED flashes every 30-40 seconds for status
  • Test-Hush button silences false alarms easily

Heat Detection for Garages and Kitchens

This hardwired heat detector activates at 135 Fahrenheit and emits an 85-decibel alarm. It is designed for areas where smoke alarms can trigger falsely, such as garages, kitchens and attics. The unit operates on 120V AC power with a 9V alkaline battery backup included. It suits homeowners who need reliable heat-only sensing in high-humidity or dusty environments.

Hardwired Build with Quick-Connect Harness

A quick-connect power harness simplifies installation on a 120V circuit. Two LEDs provide status: a red light flashes every 30 to 40 seconds for normal operation, and a chirp signals when the 9V backup needs replacement. Interconnect wiring allows up to 18 Kidde alarms to sound together, plus six strobe lights or relay modules. The device is UL Certified and rated for -20F to 100F operation.

Interconnect Limits and Heat-Only Sensing

The interconnect system supports a maximum of 24 Kidde detectors on one circuit, though only 18 alarms plus accessories are specified for this model. It detects heat only and will not respond to smoke or carbon monoxide. Buyers who need smoke or CO detection must install separate compatible alarms. The 135F trigger point is fixed and not adjustable.

Highlights

  • Detects heat above 135°F with 85dB alarm
  • Hardwired 120V power with 9V battery backup
  • Interconnects up to 18 Kidde alarms together
  • Red LED flashes every 30-40 seconds for status
  • Test-Hush button silences false alarms easily

Specifications

No published specifications for this item yet.

Questions about this item

What temperature does the 135°F heat detector actually trigger at?

The alarm activates once the surrounding temperature rises above 135°F, sounding an 85-decibel alert to warn of dangerous heat levels.

What wiring and box depth does the hardwired heat detector require for mounting?

It connects to a 120V AC circuit via the supplied quick-connect harness and fits a standard junction box; a 9V alkaline backup battery is included.

How do you interconnect up to 18 Kidde alarms, and which step is most often missed?

Link the interconnect wire between each unit’s harness; the step most people forget is testing the full chain with the Test-Hush button after power-up.

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