Kidde is one of the most widely installed fire alarm brands in the United States, with products in commercial buildings, schools, hospitals, industrial facilities, and government installations across the country. If your facility runs Kidde fire alarm equipment, this guide will help you identify the right replacement parts and understand which Kidde product line fits your needs. Life Safety Consultants has been supplying Kidde fire alarm replacement parts since 2002.
About Kidde Commercial Fire Alarm Products
Kidde manufactures a comprehensive portfolio of commercial fire alarm equipment covering every major system component — from detection to notification to control. Their products are UL-listed and designed to integrate with both conventional and addressable fire alarm control panels.
Kidde Smoke Detectors
Photoelectric Smoke Detectors
Photoelectric detectors use light-scattering technology to detect smoke particles, making them highly effective at sensing slow-smoldering fires — the type most likely to produce toxic gases before visible flames appear. Kidde photoelectric detectors are available in 2-wire and 4-wire configurations for both conventional and addressable systems.
Ionization Smoke Detectors
Ionization detectors respond rapidly to fast-flaming fires by detecting changes in ionization current caused by combustion particles. Kidde ionization models are widely used in areas where fast-flaming fire risk is the primary concern.
Duct Smoke Detectors
Kidde duct smoke detectors are installed in HVAC ductwork to prevent smoke from circulating through a building’s air handling system. They include sampling tubes (SD-T36, SD-T78) that extend into the air stream to pull representative air samples for detection.
Kidde Heat Detectors
Heat detectors provide reliable fire detection in environments where smoke detectors would produce false alarms — kitchens, garages, dusty industrial spaces, and areas with steam or exhaust. Kidde offers fixed-temperature and rate-of-rise heat detectors suitable for both conventional and addressable panel configurations.
Kidde Carbon Monoxide Detectors
CO detection is increasingly required by code in commercial occupancies. Kidde CO detectors deliver accurate, reliable carbon monoxide monitoring and are available in both standalone and system-connected versions that interface with addressable fire alarm control panels.
Kidde Notification Appliances
Kidde’s Genesis line of notification appliances is among the most recognized in the industry. Products include:
- Horns: High-output audible alarms for commercial occupancy use
- Strobes: ADA-compliant visual notification devices for hearing-impaired occupants
- Horn/Strobe Combinations: Combined audible and visual appliances to simplify installation and reduce device count
- Speakers: Voice-capable appliances for mass notification and emergency voice/alarm communication systems (EVACS)
- Bells: Traditional fire alarm bells for older building systems and retrofit applications
Kidde Accessories and Control Equipment
Beyond detectors and notification devices, Kidde manufactures a broad range of accessories: pull stations, remote annunciators, relay modules, input modules, battery cabinets, and control panel components. These parts are essential for maintaining complete Kidde fire alarm systems.
Order Kidde Replacement Parts from Life Safety Consultants
Life Safety Consultants maintains deep inventory across current and legacy Kidde product lines. Whether you need a replacement detector head, a Genesis horn/strobe, a duct detector sampling tube, or an obscure control panel accessory, we can help.
Browse our full Kidde fire alarm parts catalog or call our knowledgeable team at 1-888-557-0558. We’ve been helping fire alarm contractors, building owners, and facilities managers find the right parts since 2002.

