If your RV, camper trailer, or off-road build has a propane stove, gas heater, generator, or refrigerator — you need a carbon monoxide detector. Not just because it might be legally required, but because CO kills without warning. It's odorless, colorless, and fast.
Here's what US law says, what the RV industry standards require, and how to make sure you're protected.
The Short Answer: Yes, CO Detectors Are Required in Most RVs
New recreational vehicles sold in the US must comply with NFPA 1192 (Standard on Recreational Vehicles) and RVIA (Recreation Vehicle Industry Association) standards. Both require a CO detector in any RV that has a combustion appliance — propane stove, furnace, water heater, or generator.
The detector must be:
- Listed to UL 2034 standard (the RV/residential CO alarm standard)
- Wired directly to the battery — not through the battery disconnect switch
- LP/propane sensor mounted within 20 inches of the floor (propane is heavier than air)
- CO sensor positioned at breathing height (upper half of the wall or ceiling)
Most combo CO/LP detectors — including the ones we stock — meet all of these requirements.
US State Laws on CO Detectors
State laws on CO detectors primarily target homes, hotels, and rental properties — not RVs specifically. However, several states have laws that extend to any occupied dwelling, which can include your RV if it's used as a primary or secondary residence.
States with strong CO detector mandates:
- California — Required in all dwelling units with a fuel-burning appliance. Full-timers and snowbirds in California need one.
- Colorado — Required in all dwellings with fuel-burning appliances. CO is a particular risk at altitude — propane appliances produce more CO at elevation.
- Washington — Required in all residential occupancies, including RVs used as housing.
- Oregon — Required in dwellings with carbon-monoxide sources.
- New York — Required in all one- and two-family dwellings and multi-family units.
Even in states without specific mandates, most campgrounds, RV parks, and state parks now require CO detectors as a condition of entry — particularly where generator use is common.
Bottom line: even if your state doesn't technically require it, any campground that cares about liability will ask. Your insurance may require it too.
Why RV CO Risk Is Higher Than You Think
- Smaller enclosed space. A 150 sq ft camper reaches dangerous CO levels much faster than a 1,500 sq ft home.
- Generator backdraft. Running a generator near a window or vent can push exhaust directly into the living area — the most common cause of RV CO fatalities.
- Altitude. At high elevation (Colorado, Utah, Wyoming), propane appliances produce more CO even when working normally.
- Off-grid heating. Diesel heaters, propane furnaces, and portable catalytic heaters all produce CO if they malfunction or aren't properly ventilated.
- Sleeping with appliances running. Most RV CO deaths happen overnight.
Combo CO + LP/Propane Detectors: What to Buy
A combination CO and LP gas detector is the best choice for RVs — it detects both carbon monoxide and propane/LP gas leaks in one unit.
What to look for:
- 12V hardwired — battery-powered standalone detectors are not rated for RV use under NFPA 1192
- UL 2034 listed
- Dual-sensor — CO at breathing height + LP sensor near the floor
- Battery backup — keeps working if your 12V system is off
We stock a full range of CO and combination detectors — from basic 12V hardwired units to 5-in-1 combo detectors that also cover smoke and natural gas. Browse all CO & gas detectors here →
FAQ
Does my tent trailer or pop-up camper need a CO detector?
If it has any propane or combustion appliance, yes. Opus OP4, Black Series, MDC, and most Australian off-road pop-ups use 12V propane systems that require detection.
Can I use a regular household CO detector in my RV?
No. Standard household detectors are designed for AC power and may not handle 12V system voltage fluctuations. RV-rated units are built for 12V DC and tested to NFPA 1192.
Where should I mount it?
Mount on the wall between 12–20 inches from the floor. This puts the LP sensor in the correct zone (propane is heavier than air) and the CO sensor at mid-height. Keep away from cooking areas to avoid false alarms.
How often should I replace it?
Every 5–7 years regardless of whether it has alarmed. The electrochemical sensor degrades over time.
Don't Rely on Feeling Sick as Your Warning
CO poisoning causes headache, nausea, and dizziness — easily mistaken for motion sickness or altitude sickness. A $30–$50 detector belongs in every camper with gas appliances.