Gas bottle level indicator with integrated LED torch Easy to operate, the Truma LevelCheck is pressed horizontally against a LPG gas bottle With the device using ultrasound to establish whether there is gas at the point on the gas bottle at which it is held, the measurement is extremely precise and reliable If there is gas in the bottle at the measuring point, the status LED will turn green, when there is no gas it will turn red Simply move down the bottle and press to establish how full the gas bottle is While the device is determining the level of LPG gas, the LED display flashes orange and the measuring process is indicated by a beep tone Truma has also integrated an LED torch making it a very handy gadget to keep in your RV or for around the home The Truma LevelCheck is suitable for all propane and Universal LPG / butane, steel or aluminium gas bottles with diameters between 200 and 350 mm Key benefits Reliable indication using ultrasound Easy handling For all steel and aluminium LP gas tanks with a diameter of 79 to 138 in / 200 to 350 mm With integrated LED light Not for plastic tanks, butane tanks, gas tanks or refillable gas tanks Measurements can be taken in the temperature range between -15 and + 40 °C Warranty: 1 year