ECENCE 2X Magnetic Gas Level Indicator for Butane Propane Bottle cylinders magnetically

Magnetic: Our gas level indicator (GLI) must simply be placed on the lower half of a clean area of the gas cylinder to indicate the gas level. Application: The GLI requires active use of the gas cylinder for at least 10 minutes to display temperature differences, which means gas must escape from the cylinder. Fill level: The gas level indicator features a bar that is active on either the left or right side depending on the season. In winter, the bar is active on the left, and in summer, on the right. Gas indicator: The temperature range is -10 to 120 degrees Celsius, and products can display different colors, blue, green, or brown - when green is displayed, the temperature is normal. Reusable: The fill level indicator is magnetic and therefore reusable. It indicates low gas level before the gas runs out, which can be especially helpful when grilling.