2 Wire, Conventional Carbon Monoxide Gas Detector, Gas Alarm (400-001)

400-series non-addressable carbon monoxide (CO) gas alarms are suitable for connection to 2-wire and 4-wire non-addressable fire detection control and indicating equipment. 400 detectors can also connect to 2-wire and 4-wire addressable fire detection control and indicate the equipment that can accept non-addressable detectors.
Advanced electronics in conjunction with a semiconductor gas sensor provide early detection of carbon monoxide gas and high immunity against unwanted alarms.

- Detector auto-reset once gas levels fall below alarm threshold levels
- 2-wire and 4-wire models for DC 12 V and DC 24 V operation
- Magnet-initiated alarm test function
- N/C or N/O alarm relay output
- Loud 85 dB internal sounder