Safe-T-Alert Flush Mount CO/Propane Alarm 12V DC - RV/NFPA Compliant

In this review of the Safe-T-Alert 25-742-BL-TR flush mount alarm, the bottom line is simple: it is designed for RV owners and mobile use where simultaneous detection of carbon monoxide and propane (CNG included) is essential. The reviewer found the unit straightforward to install in a 12V DC hard-wired setup and appreciated that the included trim ring covers old cutouts for a clean finished look. For anyone who needs a single, code-listed alarm that meets RVIA and NFPA requirements, this model is worth considering.

Key Features

• Combination detection: Simultaneously senses carbon monoxide and propane, reducing the need for separate alarms and simplifying safety coverage in tight spaces.
• Flush mount with trim ring: The supplied trim ring covers existing cutouts so installers can achieve a clean, finished appearance without extra parts or patching.
• 12V DC hard wire: Designed for automotive and RV electrical systems, this unit hard-wires into 12V DC power for permanent, tamperresistant installation.
• Listed to industry standards: Meets UL 1484 RV and CSA 6.19 listings and conforms to RVIA and NFPA requirements, which eases code compliance concerns for RV builds or retrofits.
• Black flush aesthetic: The low-profile black faceplate integrates with darker interiors and hides discoloration better than white units.

Who It's For

This alarm is aimed at RV owners, mobile home occupants, and small-vehicle converters who need combined protection against carbon monoxide and propane leaks with a hard-wired 12V installation. Professionals installing safety systems in recreational vehicles will value the code listings and the trim ring that simplifies replacement of older devices.

It is less suited for users who need battery-operated portability or a Wi-Fi/smart alarm with remote alerts; those features are not part of this model's design. Also, homeowners who require AC-powered hard-wire solutions should look for residential line-voltage models instead.

Pros & Cons

Pros

• Combined CO and propane sensing reduces equipment clutter and provides broad coverage from a single device.
• Trim ring that covers existing cutouts makes upgrades clean and saves time on installation.
• Listed to UL 1484 RV and CSA 6.19 and meets RVIA/NFPA requirements, supporting code compliance for RV installations.
• Hard-wired 12V DC connection is reliable for long-term use in mobile electrical systems.

Cons

• Not battery powered, so it requires a 12V DC hard-wired installation and is not suitable for locations without that supply.
• Does not include smart connectivity or remote alert features that some modern users expect.

Specifications

Product type	Combination Carbon Monoxide/Propane Alarm
Mount style	Flush mount with trim ring
Power	12V DC hard wire
Listings	UL 1484 RV; CSA 6.19
Standards	Meets RVIA and NFPA requirements
Color	Black

Our Verdict

The Safe-T-Alert flush mount combination alarm is a practical, code-listed choice for RV owners and mobile installers who want reliable detection of CO and propane without adding multiple devices. Its 12V hard-wire design and trim ring make upgrades and installations neater and more permanent, offering good value for those prioritizing compliance and simplicity over smart features.

Frequently Asked Questions

Can this alarm be used in an RV?
Yes, it is listed to UL 1484 RV and CSA 6.19 and meets RVIA requirements, making it suitable for RV installation.

Does it detect both carbon monoxide and propane?
Yes, the unit simultaneously detects carbon monoxide and propane and is also suitable for CNG detection.

What power source does it require?
It is designed for 12V DC hard-wired installation and is not battery powered.