Intelligent data display: 1 inch flowmeter can display instantaneous flow and cumulative flow with intelligent counter, the reading display is and intuitive clear. More unit : flow meter default is gallon unit, optional measurement units: L, Gal, , , standby up to one year. High precision measurement: with high precision counter, measurement accuracy 1 percent , high reliability, good repeatability, maximum working pressure: 6RAR, cumulative technical range: 999999.Wide range of application: turbine flowmeter can be used to measure water, gasoline, , , methanol and other low , non-viscous liquids. Warm tip: Please check the battery electrode of the flowmeter once a year, so as not to affect the battery leakage resulting in water flowmeter damage. Colour:As Shown Material:Metal Size:105 x 66mm Package Contents: 1 x Flow Meter Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing The measurement allowed error is 1-3cm.