Liter Meter 0-10 Liters/Minute

These Pen-Style Liter Meters measure Oxygen flows from 0-10 liters per minute. These small, lightweight liter meters quickly verify the flow of gas. Simply attach your supply line to the bottom of the meter while holding it in an upright vertical position. * This product is only to be used for the quick assessment of flow of gas. Not purity or quality. This product is not to be used as a calibration device. *