Practical Propane Butane LPG Fuel Gas for Tank Level Indicator Magnetic Gauge Bottle

Features: Material: PET Plastic+ Liquid Crystal + Soft Magnetic Measure your Gas with this level indicator, simply attach it to your gas for tank cylinder with this magnetic Gas Level Indicator and it will show you how much gas is left in your for tank. 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 using the BBQ Save money by using more gas from each cylinder Safe,accurate Reusable Works on LPG (propane) Size: 10*6.2cm*0.1cm/3.94"*2.44"*0.04