Question about life span of carbon monoxide and propane monitor/alarms in RV's and trailers.
Q: "My RV has the original carbon monoxide and propane monitors. When should I replace them? Thanks Tom."
Answer: Safe Home recently learned that all newly manufactured 12V propane alarms and carbon monoxide alarms, whether combination alarms or single alarms, must include an internal shut-down system. The Safe-T-Alert brand we sell has an internal warning system that beeps and flashes when the sensor is dying and then beeps and flashes when the unit shuts down from sensor failure. Typical life is 3 to 5 years unless the sensors are exposed to aerosols such as spray deodorants, cooking sprays, cleaners, etc. Note the date of installation on the outside of the unit with a sticker or log into your owner's manual so you won't be awakened in the middle of no where with the bad news that your units are or have failed.
Below is the information we received from Safe-T-Alert in April 2012 to share with customers.
CARBON MONOXIDE & PROPANE ALARM REPLACEMENT NOTICE: Note to Customers:
All Safe-T-Alert Propane and Carbon Monoxide Alarms that are 5 years old and older are beyond their Mandatory Replacement Time and MUST be replaced.
Background: Underwriters’ Laboratories (UL®) Carbon Monoxide Standard UL 2034 and Canadian Standards Association (CSA®) CSA 119.2 now require that all Carbon Monoxide alarms be designed to stop service in 3 to 5 years . UL and CSA have determined that Carbon Monoxide alarms have a limited life. Propane alarms use similar sensors and UL will require the same service life in the near future.
ALL MTI Propane and Carbon Monoxide alarms which are over five (5) years old MUST be replaced. The following Safe-T-Alert Carbon Monoxide Alarm Models MUST be replaced: SA-4, SA-5, 50-541 and 50-542. Models 60-541 and 60-542 over five (5) years old MUST be replaced.The following Safe-T-Alert Propane Alarms Models MUST be replaced: SA-7 and SA-8. Models 30-441,30-442, 40-441 and 40-442 that are over five (5) years old MUST be replaced.
Important! Only install CO and Propane alarms that are UL or CSA listed for Recreational Vehicle Use.
Thank you for your question.