①. Model: K24 ②. Media: methanol fuel, chemical liquid, urea, water ③. Importers: 1 inch internal thread ④. Measurement accuracy: 1% ⑤. Repeatability: 0.5% ⑥. Maximum working pressure: 5BAR ⑦. Operating voltage: 2.3-3.3V ⑧. Single count: 0.00-9999.9 ⑨. The total cumulative number: 0.00-999999.9 ⑩. Unit: L / L, gal / GAL, pint / , quart / ⑪. Single measurement cleared: RESET ⑫. Setting units of measurement: In the standby mode, or raise the amount of current display state, press CAL + RESET button for 5 seconds to enter unit conversion settings. Press the RESET button to followed by LTR, GAL, PT, QT, LTR to choose the unit of measurement. The cumulative filling volume is displayed in the current unit of measure after conversion. Press the MENU key for 3 seconds to exit the unit conversion settings. ⑬. Note: This product requires 2 AAA batteries for convenient use (batteries not included). ⑭. Note: Low Battery Tips: When the battery voltage is 2.2V to 2.4V, "LBat" is displayed to remind the user to replace the battery. ⑮. Flow range: A: 1-15L/Min ⑯. Colour: Blue & Black ⑰. Material: PPS + Stainless steel ⑱. Package Contents: 1 * Flow Meter. Only the above package content is included; other products are not included. ⑲. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm.