KIDDE HARDWIRE CO ALARM This 120 volt AC hard wire carbon monoxide alarm can be interconnected with up to 24 Kiddie devices including smoke, CO, and heat alarms on one wiring network. The digital display offers a continuous readout of carbon monoxide levels. It features a test/reset button, 9 volt battery backup with a low battery warning, and a tamper resistant locking feature. * Operating Temperature: 40 deg. F (4.4 C) to 100 deg. F (37.8 C)
- Humidity Range: up to 85% relative humidity
- Backup Power Source: one 9 volt Battery
- Manufacturer Part #: 900-0121
- Manufacturer Warranty: 5 years