Replacing a safety device in an RV usually involves more than matching its colour. The original alarm may detect propane, carbon monoxide or both, and different models use different wall openings, wiring and attachment points. This parts directory organizes the existing UsedRVParts guides and product photos so you can identify the right type of equipment before reviewing an individual listing.
Start with the hazard and the existing model
Detects LP-gas hazards; not a carbon monoxide alarm.
See propane modelsCarbon-monoxide-only warning device with its own power and mounting requirements.
See CO alarmCombines propane and CO warning functions; confirm the complete model.
See dual-gas alarmsSeparate smoke detection, not supplied by the devices listed here.
See fire equipmentPropane-only warning alarms
A propane alarm is positioned and powered according to its specific RV installation instructions. Models such as MTI 30-441 are not interchangeable by appearance with flush variants or combination detectors.
Carbon monoxide only
The MTI 62-542 family detects CO without providing propane sensing. Compare its flush-mount trim configuration and electrical requirements with the original detector before ordering.
Combination LP and CO alarms
Dual-gas alarms have distinct shapes and replacement arrangements. The 25-741 is a compact surface model, whereas the 35-742 is flush-mounted. A separately numbered 42R kit requires verification of the supplied pieces and existing installation.
Open the MTI 25/35/45/85 model comparison and housing diagrams
Never assume that a standard alarm restores an original propane shutoff-valve or solenoid-control circuit without documented compatibility.
Fire extinguishers: read the class rating
The exact label matters more than bottle size. These catalog examples cover 2-B:C, 5-B:C and 10-B:C extinguishers. Those ratings do not automatically include Class A ordinary-combustible protection. Choose required fire protection according to applicable standards and the vehicle's equipment requirements.
See the fire-class rating diagram and detailed extinguisher comparison
Professional leak-check equipment is not an alarm
Marshall Excelsior ME-LD2 is a liquid used by trained personnel during a gas-connection inspection. It does not monitor indoor air and does not replace a propane detector. Pressure test kits and regulator accessories serve separate diagnostic purposes.
Product condition and availability vary. Review individual UsedRVParts listings for current information. Viewing and pickup, where available, are by appointment in Kelowna.