Chances are, you haven’t thought much about the gas alarm in your RV or boat. But you should. Every Safe-T-Alert alarm has a 5-year service life and should be replaced proactively to ensure reliable protection. We’ve been manufacturing RV and marine gas alarms in the USA for over 45 years, so when it’s time for a replacement, you know exactly where to turn.
Replacing an old alarm? Finding the right one is easy.
Have your part number?
Example: 85-741-WT-TR, 35-742, 25-741, 30-442
Check your expiration date.
Flip your alarm over and check the date stamped on the back. If the date has passed or you can’t find one, it’s time to replace the unit.
Choose your alarm type.
Order and install.
Built specifically for RV and marine conditions. Trusted by families for over 45 years.
Built start-to-finish in our facility in Tennessee. Every unit carries over 45 years of manufacturing experience.
Hardwired for RV and marine systems. Not a residential alarm with a different label.
Meets the applicable current UL 2034 and UL 1484 standards.
Trusted by every major RV and marine manufacturer — and by the owners who rely on them.
Featured RV safety alarms.
Every RV alarm we make is RVIA certified, 12V hardwired, and built to detect the gases that are actually dangerous in your rig.
85 Series Universal Dual CO/LP Alarm with Trim Ring
Best for: Replacing older 12V propane alarms with a dual CO/LP safety solution
- Dual CO + LP protection
- Includes trim ring
- Slim, low-profile design
- Built for RV conditions
- No battery replacement needed
- Alarm mute and rapid recovery
25 Series Flush Mount Dual CO/LP Alarm
Best for: Compact dual protection
35 Series Flush Mount Dual CO/LP Alarm
Best for: 12V replacement upgrades
Safety starts before the alarm sounds.
Carbon monoxide and propane risks can happen silently. Safe-T-Alert helps RV owners stay protected with alarms designed to detect dangerous conditions and provide clear, reliable alerts.

Carbon monoxide
Colorless and odorless. CO from generators and engines can reach dangerous levels before you notice.
Propane / LP gas
Heavier than air, propane sinks and pools in low areas of your rig — a leak can happen fast, don’t let it go undetected.
Alarms Have a Lifespan
Every Safe-T-Alert alarm is designed with a 5-year service life. While the alarm includes an end-of-life warning when powered, replacing it within 5 years of the expiration date is the best way to ensure continuous protection.
Installation Matters
RVs and boats demand more than a residential alarm. Safe-T-Alert alarms are purpose-built and tested to perform through constant vibration, changing temperatures, and life on the move.