Dometic Propane Cylinder Level Detector?

[Alphonse]

I may buy one of these level detectors made by Dometic. The Amazon site only has three reviews thus far.
http://www.amazon.com/gp/product/B00...dp_o_pC_nS_ttl

Looking for feedback on how well they work and if they are reliable. Any insights you could share based on your experience with one would be appreciated.

[AWCHIEF]

Possibly same product with different label and lower price. Reviews overall not to good.

http://www.amazon.com/GasCheck-Propa...T0QSCGKV2G6GF3

[graysailor]

Propane level detectors are quite unreliable. Never have found one that works.

[Zil]

http://www.amazon.com/GrillPro-00030...W3Y91V7Q1SMKGJ

[lsbrodsky]

I have the Truma version
Fill level indicator Truma LevelCheck

Actually, it seems to work pretty well but the tank must be clean, rust interferes. I have tested it on 20 lb and 30 lb tanks and I like it.
Larry

[Alphonse]

Here is the Dometic video on the device that I am interested in:

Dometic Group

[field & stream]

I have a different version and it works well -- when properly used. The location on the tank must be clean, and you may have to try a couple of different locations. It is much more convenient than those that require warm water to be poured on them. We love it.