Description: brand new and high quality Features: Measure your Gas with this level indicator, simply attach it to your cylinder gas for tank 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 test gas temperature, measure the temperature range of -10 C ~ 120 C. It will really show you when you are low on gas, before you run out! Works while you're using BBQ, save money by using more gas from each cylinder. Safe & accurate, reusable, works with LPG (propane gas) & butane cylinders, magnetic holder allows for easy reuse in exchange for bottles. Level indicator only, other accessories demo in the picture is not included! Specification: Type:Level Indicator Material: ABS Applications: Home, BBQ, Camping, Restaurant Features: Measure gas, Simply attach, Practical, Liquid Crystal Dimension: app.10x6.2x.1cm/3.94x2.44x0.04in Color: Black Quantity: 1 Set Note: 1.Place your Gas Level Indicator on a clean area over the lower half of the cylinder. 2.Turn on the gas and 10 minutes before you can read your waiting indicator. 3.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 4.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 3 Pcs x Level Indicator