The Truma LevelControl uses ultrasound to measure how much gas is in the bottle and sends the determined data via Bluetooth to the smartphone or tablet. The Truma LevelControl is suitable for all common European steel and aluminum cylinders (5 kg to 33 kg).

Further specifications:

• Power supply 3 V / 2 x 1.5 V batteries (alkaline LR03, AAA)
• Current consumption: max. 70 mA
• Resting current consumption: 0.001 mA
• Operating temperature: -20 °C to +50 °C
• Bluetooth: Class 2

Note: For aluminum bottles, an additional clamping plate is required for attachment.