Does model 30-442 P detect combustible gas?

It detects propane which is a combustible gas. Not sure if it detects any other types of gas.

does it shut the gas off

No, an alarm sounds to let you know there is a gas leak. It does not shut the gas off.

Ehat happens when detector is expired?

When it expires, it emits a piercing sound. It will continue to do this until it is replaced.

Does it come with lead wires already wired in? How long, what gauge? Thanks.

It comes with lead wires they are already wired in 4 or 5 inches long. I'm going to guess it's 16 gauge but that is only a guess hope this helps

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Safe T Alert 30 Series Classic LP Gas Alarm - Propane Alarm - Flush Mount, Black - 30-442-P-BL

Safe T Alert 30 Series Classic LP Gas Alarm - Propane Alarm - Flush Mount, Black - 30-442-P-BL

Product ID: 442787627

Details

Alarm
Vibration
Brand
Safe T Alert
Colour
Black
Item Weight
0.28 Pounds
Manufacturer
MTI Industries
Operating Humidity
95 percent

⚡12V DC power, no batteries

🔥Alarm triggers <25% LEL propane

🚐Flush mount for RVs

Description

🔥 Stay alert, stay safe—your RV’s silent guardian 🚐

RUGGED RV READY DESIGN - Flush mount fits Class A, B, C motorhomes & trailers seamlessly
SMART PROPANE DETECTION - Mute button + rapid recovery sensor for safe ventilation without risk
EFFORTLESS POWER MANAGEMENT - Runs on 12V DC with low 90mA draw, preserving your RV battery life
BUILT FOR EXTREME CONDITIONS - Operates flawlessly from -40°F to +158°F, no matter where you roam
MAINTENANCE FREE RELIABILITY - Long-life self-cleaning sensor with loud 85 dB alarm for peace of mind

The Safe T Alert 30 Series Classic LP Gas Alarm is a rugged, flush-mount propane detector designed specifically for RVs and campers. It features advanced propane sensing technology with a mute button and rapid recovery sensor, operates on reliable 12V DC power to eliminate battery hassles, and withstands extreme temperatures from -40°F to 158°F. With a loud 85 dB alarm and maintenance-free sensor, it ensures dependable, hands-free protection that meets RVIA/NFPA safety standards.

Specifications

ASIN	B00MJV2H68
Alarm	Vibration
Brand	Safe T Alert
Colour	Black
Item Weight	127 g
Item model number	30-442-P
Manufacturer	MTI Industries
Net Quantity	1.0 Count
Operating Humidity	95 percent
Power Source	Battery Powered
Product Dimensions	4.4D x 25.4W x 20.3H Centimeters
Sensor Type	Propane
Style	classic
UPC	715456404332 700115543101

Reviews

J**L

Great value

2.03.2026

K**R

Fine replacement unit

19.03.2026

F**Z

Great product

2.02.2026

T**R

Perfect replacement, but no connector

8.09.2025

G**D

All but the color was an exact replica of the one I replaced.

20.03.2026

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