This product can safely and accurately measure the capacity, according to the temperature, measure the temperature range of 10 C ~ 120 ° C : ABS It will really show you when you are low on, before you run out! Works while you ' re using BBQ, save money by using more from each cylinder Safe & accurate,, works with () & cylinders, holder allows for easy reuse in exchange for bottles Measure your with this, simply attach it to your cylinder tank with this and it will show you how much is left in your tank, Manufacturer: GAOINTELL