Safe-T-Alert 30 Series 12V RV Propane Alarm (30-442-P-BL)
Updated June 17, 2026
The Safe-T-Alert 30 Series is a 12-volt propane (LP) gas alarm designed for recreational vehicles, campers, travel trailers, and boats. It continuously monitors the air for hazardous propane vapors and sounds a loud 85 dB alarm when gas is detected. The black flush-mount unit features a test/reset button that also mutes the alarm during ventilation, and it remains fully operational during the mute cycle, re-alarming if dangerous conditions persist.
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How It Works
The alarm uses a long-life, self-cleaning sensor that requires no maintenance. When propane gas is present, the sensor triggers an 85 dB audible alarm. The test/reset button allows one-touch verification of all detector functions and can silence the alarm temporarily while the area is ventilated. The unit is UL listed for use in RVs and unconditioned areas.
Common Failure Symptoms
Over time, the sensor may degrade, typically after about five years. Symptoms include frequent false alarms, failure to alarm when gas is present, or a continuous chirp indicating end-of-life. The alarm may also fail if the 12V power supply is interrupted or if the unit is exposed to extreme humidity or contamination.
Installation Notes
The alarm is designed for flush mounting in a wall or cabinet. It requires a 12V DC power source (typically 90 mA draw). Because propane is heavier than air, the alarm should be mounted near the floor, close to potential leak sources such as the stove, furnace, or propane tank compartment. Avoid placing it near vents, windows, or areas with high humidity. The unit includes a test/reset button and a mute function for safe ventilation.
