Truma LevelCheck LPG Gas Cylinder Level Indicator
Guessing a gas bottle's level by weight or by shaking it is imprecise at best. Truma's LevelCheck uses ultrasound instead, giving a genuine point-in-time reading without disconnecting the cylinder or fitting anything permanently.
Key features
- Ultrasonic measurement technology
- Pressed horizontally against the cylinder wall to take a reading
- Green LED indicates gas present at that point, red indicates empty at that point
- Fits standard steel and aluminium cylinders from 200-350mm diameter
- No fitting or gas connection required
RV use case
This suits owners who want a quick, no-install way to check how much gas is actually left in a bottle before a big trip, rather than guessing or waiting to find out mid-cook.
Pros
- No permanent fitting needed — works on any compatible bottle, borrowed or owned
- Ultrasonic method is meaningfully more precise than weight-guessing or shaking the bottle
- Quick to use before heading off on a trip
Cons
- Gives a reading at the point held against the cylinder, not a continuous percentage — a few checks at different heights are needed for a full picture
- Doesn't work outside the 200-350mm cylinder diameter range
- Runs on its own battery, one more thing to keep charged or replaced
Best for
Owners who want a fast, no-install spot-check on gas levels before a trip, rather than a permanently wired gauge system.
Verdict
A simple, genuinely useful spot-check tool — not a permanent gauge, but it does its one job well and takes the guesswork out of a gas bottle's remaining level.

Truma LevelCheck gas cylinder level indicator

Device held against a gas cylinder to take a reading

Retail packaging

Diagram illustrating how the ultrasonic reading works