One of None
I have one on my boat by the other mfg. same thing the sensor is $$$ about third the cost of a new complete unit.
Being around fuels most of my professional life it's just second nature for me to very sure the tanks are off, and the lines purged before even thinking of getting underway.Picture this;
You are sailing about 100 miles off the Pacific Baja coast.
The wind is fresh, maybe 25 to 35 and may be building.
It's about 0200 with almost no moon.
You are handling sails and reefing. AND THE PROPANE ALARM SOUNDS!
And it might be for the 4th or 6th time that night.
What do you do?
That actually took place and, I am happy to report, we are still here. There NEVER was ANY propane leak.