Kidde 900-0120 Ac Wire-in Carbon Monoxide Alarm with 9V Battery Backup and Interconnect

Product Description

The Kidde 900-0120 is an AC wire-in carbon monoxide alarm designed for residential and light commercial installation. It runs on 120 Volt AC power at 60 Hertz and includes a 9 Volt battery backup to keep the alarm active during power outages. HVAC technicians, electricians, and contractors rely on this unit for dependable CO detection in homes, apartments, and multi-unit buildings. Carbon monoxide is a colorless, odorless gas produced by fuel-burning appliances such as furnaces, boilers, water heaters, and gas ranges. Because it cannot be detected by sight or smell, a dedicated CO alarm is essential for life safety in any occupied space. The 900-0120 uses electrochemical sensing technology, which is the industry standard for accurate and stable carbon monoxide detection. Electrochemical sensors respond quickly to rising CO levels and maintain consistent performance over time, making them the preferred choice for professional installations. The alarm produces an 85 decibel horn measured at 10 feet, loud enough to alert occupants in most residential settings. One of the standout features of this unit is its interconnect capability. It connects with up to 24 Kidde devices on a single wiring network, of which up to 18 can be initiation devices. Compatible devices include Kidde smoke alarms, CO alarms, and heat alarms. When one alarm triggers, all interconnected alarms sound simultaneously, providing whole-home or whole-building notification. This makes the 900-0120 an ideal choice for new construction, renovation projects, and retrofit installations where a networked life safety system is required. Installation is straightforward for licensed electricians and experienced contractors. The wire-in design connects directly to the building's AC wiring, eliminating the need for frequent battery replacements under normal operation. The 9 Volt battery backup ensures continued protection during power interruptions. The unit is listed to UL 2034, the standard for single and multiple station carbon monoxide alarms, confirming it meets recognized safety requirements. The 900-0120 also carries a 10-year limited warranty, reflecting confidence in long-term reliability.

• Electrochemical CO sensing technology for accurate, stable detection
• Interconnects with up to 24 Kidde devices including smoke, CO, and heat alarms
• 120 Volt AC wire-in power with 9 Volt battery backup for outage protection

Product Highlights

The Kidde 900-0120 delivers reliable carbon monoxide detection with professional-grade interconnect capability and AC wire-in convenience. It is built for contractors who need a UL 2034 listed CO alarm that integrates easily into a networked life safety system.

Product Information

Standard Information

• Brand: KIDDE
• Manufacturer Part Number: 900-0120

Technical Specifications

• Type: Wire-In
• Operation Type: Electrochemical
• Voltage Rating: 120 Volt AC 60 Hertz
• Battery Backup: 9 Volt
• Horn Output: 85 Decibel at 10 Feet
• Number of Interconnections: 24
• Approval: UL 2034