Magnetic Gauge Caravan Bottle Propane Butane LPG Fuel Gas Tank Level Indicator

★Material: PET Plastic+ Liquid Crystal + Soft Magnetic ★This product can safely and accurately measure the gas capacity, according to the gas temperature test, measuring the temperature range of -10 C~ 120 C. Will actually show you when you are low on gas, before you run out! Works while you are usingthe BBQ Save money by using more gas from each cylinder Safe & accurate Reusable Works on LPG (propane) & butane cylinders Magnetic backing allows for easy reuse on exchange bottles Comes with instruction ★Never run out of Gas from now on. Measure your Gas with this level indicator, simply attach it to your gas tank cylinder with this magnetic Gas Level Indicator and it will show you how much gas is left in your tank.