COUNTERFEIT ALERT

How to tell if your Safe-T-Alert alarm is counterfeit

Fake propane and carbon monoxide alarms are sold online under our name. They are built to look like ours, and they have been tested to nothing.

Check yours in 60 seconds.

Safe-T-Alert by
MTI Industries

45+ years
of Safety

UL listed
for your protection

Built in
Mt. Juliet, Tennessee

Check your alarm in 60 seconds

01

Model number

On the face or the back label. Genuine Safe-T-Alert alarms are 20, 25, 30, 35, 45, 62, 80 or 85 series — for example 35-742-WT.

Model35-742-WT.

02

Certification mark

Propane alarms are listed to UL 1484, carbon monoxide alarms to UL 2034. In the US only UL and Intertek’s ETL count. No mark, or no legible file number, means no certification. Check it yourself at iq.ulprospector.com.

03

Seller

Open your receipt and read the seller name, not the brand in the listing title. Genuine alarms come from safetalert.com or an authorized dealer.

Sellername

Counterfeits confirmed so far:

20-441-P-BL35-742-BL35-742-BR35-742-WT

Last reviewed July 2026.

Your model not being listed doesn’t mean it’s genuine — run the check anyway.

Not sure? Email us photos of the front, the back label and your receipt — we’ll confirm.

Send us photos

Genuine vs. counterfeit

Counterfeits pass a glance. They don’t pass a close look.

Label print

crisp type, correct logo, no spelling or spacing errors
UL mark

a legible file number you can look up
Date code

a legible file number you can look up
Housing and packaging

fit, finish, carton, manual

A genuine Safe-T-Alert dual alarm sounds on propane below 25% of the lower explosive limit, and on carbon monoxide within 15 minutes at 400 ppm. A counterfeit has no such number, because nobody measured.

Think yours is a counterfeit?
Report it and we’ll confirm

Report now

Not every problem is a counterfeit

It may just be expired

Genuine alarms expire. Safe-T-Alert alarms must be replaced within five years of the production date on the unit, and a repeating chirp or steady fault light usually means end of life — not a fake.

And there is no recall

There is no recall of genuine Safe-T-Alert products. Forum threads using that word are discussing counterfeits.

Buy genuine

Buy from safetalert.com or an authorized dealer — Camping World, Tweety’s RV, and independent RV and marine dealers nationwide. If one listing is dramatically cheaper than the rest, that’s the tell.

Find an authorized dealer