MAGNETIC Butane/Propane Reusable Gas Level Indicator

An accurate and reliable way to measure the amount of gas left in a bottle.

A gas level reusable magnetic gauge is able to tell you how much gas is left in all standard steel Propane and Butane cylinders using ultrasonic technology. Gas level gauges shine red where no gas is present and green when the level of gas is indidcated.

Don't run out of gas again!