Search  for anything...
Safe T Alert

Safe T Alert 20 Series Mini LP Gas Alarm - Propane Alarm - Surface Mount, White - 20-441-P-WT

  • Based on 2,617 reviews
Condition: New
Checking for the best price...
$51.36 Why this price?
Save $11.89 was $63.25

Buy Now, Pay Later

As low as $8.56 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 11 – Oct 13
Order within 13 hours and 5 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • BUILT FOR RVS Compact surface mount design ideal for Travel Trailers, Fifth Wheels, Truck Campers, and Folding Campers. Engineered for rugged RV environments.
  • ADVANCED PROPANE DETECTION Alarm Mute button allows safe ventilation while the rapid recovery sensor reactivates if propane levels remain dangerous. Alarm activates at <25% LEL of propane or methane.
  • RELIABLE 12V POWER Operates on 12v DC (75mA @ 12v DC) for dependable, battery-free protection. Innovative circuitry conserves power for long-term use.
  • SPACE-SAVING & EASY TO INSTALL Compact case size: 3.5W x 2.5H x 1.25D with included mounting bracket for simple installation in tight spaces.
  • DESIGNED FOR HARSH CONDITIONS Operates in temperatures from -40F to +158F.

Description

Safe T Alert has been depended on for years to keep campers and boaters safe with our alarms. Whether you're parked at the campsite, or out on the water, enjoy the peace of mind knowing Safe T Alert has you covered. We help campers and boaters quickly swap out their expired alarms with our universal fit alarms so they can continue doing what they love! Family owned since 1979, Safe T Alert by MTI Industries has been dedicated to reliably keeping outdoors enthusiasts safe for decades. Yes! Shop to find the one that will work for you, choosing between flush mount models, surface mounts, or even a trim kit to make for an easy install.

Brand: Safe T Alert


Style: White, Surface Mount


Power Source: Corded Electric


Color: White


Product Dimensions: 1.25"D x 3.5"W x 2.5"H


Item Weight: 0.27 g


Alarm: Audible


Sensor Type: Propane


Global Trade Identification Number: 13


Unit Count: 1 Count


Brand: Safe T Alert


Model Number: 20-441-WT


Global Trade Identification Number: 13


Unit Count: 1 Count


Number of Items: 1


Manufacturer: MTI Industries


UPC: 715456204413


Built-In Media: Safe-T-Alert 20-441-P-WT Mini Hard-Wired Propane/LP Gas Alarm - 12V, 20 Series, White


Item Type Name: Safe-T-Alert 20-441-P-WT Mini Hard-Wired Propane/LP Gas Alarm - 12V, 20 Series, White


Mfr Part Number: 20441WT


Power Source: Corded Electric


Alarm: Audible


Sensor Type: Propane


Product Style: White, Surface Mount


Color: White


Item Dimensions D x W x H: 1.25"D x 3.5"W x 2.5"H


Item Weight: 0.27 g


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 11 – Oct 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Exact replacement for OEM detector every 60 months.
The propane detector monitor that came with my 2021 grand design camper trailer says replace after 60 months, at 60 months and 2 weeks it started beeping. Time to replace. I bought this white one instead of the black like was original just because, it is the exact size, fits on the existing bracket (it does come with a bracket but I didn't want to take screws out. I used butt connectors to connect this unit to the existing wires after I SHUT OFF ALL POWER EVEN THE BATTERY DISCONNECT ALWAYS SHUT OFF ALL POWER BEFORE DOING ELECTRICAL WORK and easily crimped it in and voila, good for another 60 months. Easy to replace, easy to keep myself alerted to propane leaks. ... show more
Reviewed in the United States on March 23, 2026 by IrishMelody
    • Staying ssfe
Replaced my old alarm with this one and it was easy to do following the safety precautions and it took like 15 minutes to replace . Works very good and would recommend it to RV owners.
Reviewed in the United States on August 20, 2026 by Vince
    • Exactly like our old one that failed!
This was the exact replacement of the one we had in our rv! Easy to hook up!
Reviewed in the United States on April 15, 2026 by Diane
    • Replacement lp gas alarm
We were able to replace the original alarm that came in our 5th wheel. It was just like the original. My husband did the work to put it in, he said it was easy.
Reviewed in the United States on August 12, 2026 by Shari C.
    • Propane alarm
Good quality and value. Easy install. Just like original
Reviewed in the United States on July 29, 2026 by Gregg Luther
    • Arrived on time was easy install
Was easy to install
Reviewed in the United States on August 23, 2026 by Michael Traurig
    • Can be user installed.
Review Image by Steven Hawkins
Easy to remove old and install new IF the original was installed WITH ENOUGH SLACK in the Wiring to remove abd replace. This Safe-T- alert propane alarm is the EXACT brand and model currently up for replacement in my 2013 travel trailer. I trust the Safe - T - Alert brand.
Reviewed in the United States on May 22, 2026 by Steven Hawkins
    • Back in business
Winton perfectly without any problems. Great replacement for original equipment.
Reviewed in the United States on June 10, 2026 by John

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...