› M1 Support Forum › Smoke CO detectors for M1XRF2Hv2 › Reply To: Smoke CO detectors for M1XRF2Hv2
January 30, 2026 at 4:46 pm
#9907

The Honeywell 5800 COMBO IS NOT compatible with the M1 system but the individual Smoke only (5808W3) or CO only (5800 CO) should work. We are currently evaluating the new 5800CMBOV but testing isn’t complete at this time.
