Truma LevelCheck
The Truma LevelCheck is a mobile content level indicator for steel or aluminum LPG gas cylinders with a diameter of 200 to 350 mm. It uses ultrasound to reliably detect and display whether liquid gas is present at the specific measuring point on the cylinder.
View official manual on manufacturer's site ↗Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
Measurement result flashes | Battery is low (measurement is still possible). | — | Prepare to replace the 9V battery soon. | DIY Safe |
Red status LED flashes with 3 beeps | Battery is empty (measurement is no longer possible). | — | Replace the battery with a new leak-proof 9V E-block (6 LR 61, 6 F 22) battery. | DIY Safe |
Red status LED / No gas or measurement failed | No liquid gas detected at the measuring point, or measurement error caused by dirt, rust, thick paint, stickers, condensation, or unsuitable cylinder type. | — | Clean the measuring head and cylinder surface, remove stickers or condensate, or try measuring at a different height on the cylinder. | DIY Safe |
Red status LED – No gas available or erroneous measurement | No liquid gas detected at the measurement point or measurement error due to dirty head, rust, thick paint, stickers, or frozen condensation. | — | Clean the measuring head, remove dirt/adhesives, or take a measurement at a different point on the gas cylinder. | DIY Safe |
Flashing reading indicator | Battery is almost depleted, though measurements can still be performed. | — | Prepare to replace the 9V battery. | DIY Safe |
Red status LED flashes with 3 beeps | Battery is completely exhausted and no further measurements can be performed. | — | Replace the 9V battery (type 6 LR 61, 6 F 22). | DIY Safe |
Displayed measuring result flashes | The battery is low. | — | Measurements can still be taken, but the battery should be replaced soon. | DIY Safe |
Red status LED flashes with 3 beeps | The battery is empty. | — | It can't take readings any more - fit a new battery. | DIY Safe |
Status LED red (no measurement or inaccurate) | No liquid detected or inaccurate measurement caused by cylinder conditions (rust, thick paint, stickers, condensation, or indentations). | — | Clean the gas cylinder or take the measurement at a different point. | DIY Safe |
Measurement result is displayed flashing | Battery weak | — | Measurement is still possible, but the battery must be replaced soon. | DIY Safe |
Red status LED flashes and the device beeps 3 times | Battery empty | — | No measurement possible. Replace the battery with a leak-proof 9V E-Block battery (type 6 LR 61, 6 F 22). | DIY Safe |
Red status LED / Red status LED flashing | No gas, faulty measurement, or flat battery. | — | Make sure the measuring head is clean and sits fully against the cylinder. Three beeps with a flashing red status LED mean the battery is flat - fit a new one. | DIY Safe |
Measurement result flashing | Battery low (measurement still possible). | — | Replace the battery as soon as possible. | DIY Safe |
Frequently Asked Questions
Q: How do I correctly perform a fill level measurement?
Clean the measuring head with a damp cloth, press the measuring head horizontally against the gas cylinder (do not drag it along the cylinder), wait for the beep and status LED result, and take multiple individual measurements at different heights from bottom to top.
Q: What battery type does the device require?
Use only leak-proof 9V E-block batteries (type 6 LR 61, 6 F 22).
Q: Which types of gas cylinders are compatible with the Truma LevelCheck?
It is compatible with all aluminum or steel LPG gas cylinders (propane / butane) with a diameter between 200 and 350 mm. It is not suitable for plastic cylinders, refillable tank cylinders, gas tanks, or camping gas butane cylinders.
Q: How is a measurement performed correctly?
Hold the measuring head level (at 90°) against the cylinder until it beeps. The status LED flashes orange while it measures; a second beep and the status LED then give you the result.
Q: How do you determine the filling level?
Take a series of separate readings at different heights, working from the bottom of the cylinder to the top - don't slide the device along the cylinder.