They don't work. I been down that road, asked the question.

All those gauges do is measure gas pressure. As long as there is liquid
propane in the bottle, the gas pressure in the bottle is constant. It
varies with temperature, but if the temp is held constant, a full bottle
and one that has a 1/2 cup of propane in it will maintain the same gas
pressure in the bottle.

Once the last of the liquid evaporates off the bottom of the bottle, the
pressure in the tank will decrease. And the needle on the gauge will
drop out of the green, all sudden-like, pretty much at the same time
that your stove goes cold.

Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR

On 1/18/2007 2:10 PM David Etter wrote:
> Now, why couldn't something like this be readily adapted into a
> fabricated brass block installed near the tank.
>
> http://www.flameking.com/?OVRAW=propane%20gauges&OVKEY=propane%20gauge&OVMTC=standard
>
>
>                        David (dsl82westy)
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>> There were Vanagon campers sold in the us that had propane level gauges
>> built into the propane tank. Too bad Westys are not among them. The same
>> tank manufacturer made the ones with the gauges as made the Westy tanks
>> without. Too bad somebody like Bus Depot or GoWesty does not order a
>> batch of Westy tanks WITH the darn gauges so we could have the choice
>> when replacing rusty tanks. The tanks with gauges made for the other
>> campers were the same capacity and very similar to Westy versions other
>> than being made for the passenger side. The tank company could at least
>> make some of the other tanks if they are not willing to modify the Westy
>> design to add a gauge.
>>
>> Ron????!!!!
>