Smoke and Carbon Monoxide Detector - Dual Technology - Hardwired - 9V Battery

Brand: Kidde
MPN: 21007624
Current Stock: 20

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The Kidde Front-Loading Smoke and Carbon Monoxide alarm (part # 21007624) offers protection from two hazards – fire and CO – in one unit. Sold under the FireX brand, this AC-wire with battery backup alarm emits a beeping tone followed by a voice warning that clearly announces the danger by saying, "Fire! Fire!" or "Warning! Carbon Monoxide!". The uniquely designed frontloading battery compartment makes battery replacement quick and easy, and ensures proper installation. Manufactured with photoelectric sensors for detecting smoke and fire, this alarm also includes the world’s most accurate CO sensing technology based on claims by major manufacturers.

  • AC-Wire with battery backup - Powered by home's electricity in order to provide continuous protection. An included 9V battery protects during short-term power outages
  • Front-Loading Battery - Speeds up replacement by eliminating the need to remove the unit from the ceiling or wall
  • Unique Battery Door Design - Will not close if battery is not installed properly
  • Voice Warning - Supplements warning from the traditional 85-decibel alarm by clearly stating the danger present, fire or carbon monoxide
  • Photoelectric smoke sensor - May detect visible fire particles associated with slow smoldering fires sooner than an ionization sensor
  • Electrochemical CO sensor - Provides accurate and continual CO protection during the product’s life, remains stable during temperature and humidity changes and resists reactions to household gases that may cause false readings or reduce sensitivity
  • Green LED - Will flash every 30 seconds to indicate proper operation
  • Red LED – Flashes in conjunction with the alarm sounding

Ratings & Reviews

2 reviews

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2/28/2021 3:09:00 pm

great product, can tie them al

by Rich Dowell -

great product, can tie them all together so one in the garage, one in the basement and 1 in main living, the garage is a working shop so fire is always a consideration, nice to know we can have early warning if a tragedy occurs in any location

2/2/2020 12:00:00 am

The Best EVER!!!

by Lisa G. -

They were exceptionally easy to install and I love the fact that they beep and speak to you! I would recommend them to anyone who is looking for good smoke detectors!