MTI Safe-T-Alert 85-741-WT-TR Dual CO/Propane Alarm

Not Sure If This Is the Right RV CO/Propane Alarm? We’ll Help You Get It Right.

✔ Confirm the existing alarm model and 12-volt wiring
✔ Check the wall opening and trim-ring fit
✔ Avoid ordering an incompatible replacement

Fast Response. No obligation. We’ll make sure you get the right part.

Not Sure If This Is the Right RV CO/Propane Alarm? We’ll Help You Get It Right.

✔ Confirm the existing alarm model and 12-volt wiring
✔ Check the wall opening and trim-ring fit
✔ Avoid ordering an incompatible replacement

Fast Response. No obligation. We’ll make sure you get the right part.

MTI Safe-T-Alert 85-741-WT-TR Dual CO/Propane Alarm provides 12-volt detection of both propane gas and carbon monoxide in RVs. The white low-profile alarm includes a trim ring to cover existing screw holes and help fit newer units into previous installation cutouts.

Description

MTI Safe-T-Alert 85-741-WT-TR Dual CO/Propane Alarm monitors your RV for two serious hazards with one hardwired 12-volt alarm: propane gas and carbon monoxide. Its low-profile white housing and included trim ring make it a practical replacement for an older RV gas alarm while helping cover previous mounting holes or a larger installation opening.

Why Replace Your Existing RV Gas Alarm?

RV propane and carbon monoxide alarms are safety devices with a limited service life. MTI specifies replacement five years after the alarm’s installation date. Replacing an expired, damaged, or malfunctioning alarm restores active monitoring for propane leaks and carbon monoxide inside the RV. The included trim ring also helps cover marks, screw holes, or a larger opening left by the previous detector.

Is This the Right Alarm for Your RV?

This model is intended for RV owners replacing a hardwired 12-volt combination carbon monoxide and propane alarm, especially when the previous detector left a larger cutout or visible mounting holes. Before ordering, confirm that your existing alarm connects to the RV’s 12-volt electrical system. This is not a battery-only household alarm.

Who Should Not Buy This Alarm?

Do not choose this model if you need a battery-powered household alarm, a smoke alarm, or a propane-only detector. It is designed for a permanent connection to an RV’s 12-volt electrical system. Before ordering, compare the model number, wiring, dimensions, and mounting opening of your existing detector.

MTI Safe-T-Alert 85-741-WT-TR Dual CO/Propane Alarm Features

  • Detects both propane gas and carbon monoxide in one alarm
  • Hardwired 12-volt power with no replaceable batteries
  • Included trim ring covers previous screw holes and helps fit existing cutouts
  • Low-profile slim design for RV interiors
  • Alarm Mute button with rapid-recovery sensing

Operating Specifications

  • Manufacturer: MTI Industries, Inc.
  • Brand: Safe-T-Alert
  • Manufacturer model: 85-741-WT-TR
  • Alarm type: Dual carbon monoxide and propane gas alarm
  • Power supply and current draw: 108 mA at 12 VDC
  • Operating voltage range: 12 VDC ±15%
  • Low-voltage warning: Yes
  • Operating temperature: -40°F to +158°F
  • Size with trim ring: 7 in. W × 4 in. H × 1 in. D
  • Color: White
  • Compliance: Conforms to UL STD 2034 RV / 1484 RV

What Happens If the Wrong Alarm Is Chosen?

Choosing the wrong alarm can leave you with incompatible wiring, an uncovered wall opening, or a detector that is not approved for the intended RV installation. Before requesting a quote, compare your existing alarm’s model number, power connection, dimensions, color, and mounting opening. A clear photo of the old detector and its label will help us verify the correct replacement.

Installation and Fit Notes

The 85-741-WT-TR is designed for permanent connection to an RV’s 12-volt electrical system. The included trim ring helps cover a larger opening or previous mounting holes, but it does not guarantee a direct fit for every existing detector. Compare the old alarm’s wiring, mounting opening, dimensions, and model information before ordering. Installation and testing must follow the MTI instructions supplied with the alarm.

Review the official MTI 85 Series installation and operating manual before installing or testing the alarm.

Need Help Confirming the Correct Replacement?

Before requesting a quote, send us a clear photo of your existing alarm, its model label, wiring connection, and the wall opening. We’ll use that information to help determine whether the MTI Safe-T-Alert 85-741-WT-TR Dual CO/Propane Alarm is the appropriate 12-volt replacement for your RV and help reduce the risk of ordering an incompatible alarm.

For a broader pre-trip safety checklist, read RV Safety Gear Every Camper Should Carry.

How This Model Compares to a Propane-Only RV Alarm

A propane-only alarm monitors LP gas but does not provide carbon monoxide detection. The MTI Safe-T-Alert 85-741-WT-TR Dual CO/Propane Alarm combines both hazards in one hardwired 12-volt unit. It is especially useful when replacing an older single-function propane alarm, while the included trim ring helps adapt the newer low-profile alarm to an existing installation cutout.