Note: Please see the complete text 1set: Feature: *When it appears - normal flow rate but the meter does not count, when the DISPLAY button is pressed, the meter is turned on. In this case, the possible cause is: 1. the impeller is stuck or damaged; 2. the sealant material is wrapped around the impeller; Solution: Remove the meter and ensure that the impeller rotates freely. *When it occurs - the flow rate is reduced and the meter does not count when the DISPLAY button is pressed, the meter is turned on. In this case, the reasons may be caused by: 1. The meter is partially blocked by the dried liquid; 2. Below the minimum flow rate; Corresponding solution: remove the instrument to ensure that the impeller rotates freely; 2. Increase the flow rate * When the meter is not working properly, it may be due to a board failure or a button failure. The corresponding solution: replace the circuit board Specification: Operating voltage: 2.3-3.3V Battery type: 2 x AAA LRO3 batteries Thread size: 1inch NPT Measure accuracy: 1% Maximum working pressure: 20BAR Flow range: 15-120L / Min Single count: 0.00-9999.9 Total cumulative count: 0-99999 Working temperature: -10C ~ +60C(14F~140F) Standby time: 1 year Note: And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC x Flow Meter 2: Lightweight and compact size offers convenient operation and updated installation. Makes it suitable for use with output modules, sensors and remote transmitters. High-definition displays show both instantaneous and cumulative flow with NPT Counter. Intuitive clear reading, high reliability, measuring accuracy is 1%. Can be widely used to measure water, kerosene, gasoline, etc, any problem, please contact us at first. Package Includes: 1 Set Digital Turbine Flowmeter Specifications: Material: Plastic Size: 5x6x10.5cm/1.9x2.3x4.1inch 3 Features: This is a flow meter Module/Body, screen is not included. The flow-meter module is light weight and compact size, which offers convenient operation and installation. Made from stainless steel and aluminum alloy material. 1-inch inlet and outlet. The flow meter moulde can be used for all kinds of liquid flow meters. Specification: Material: Metal Size: 10X5cm/3.94x1.97in Package Includes: 1x Flow Meter Module note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 4: Flowmeter Display Chip Features brand new and high quality Clear Reading & Accuracy Measuring: Intuitive clear reading, high reliability, measuring accuracy is 1%. High-definition displays show both instantaneous and cumulative flow. The flow-meter is light weight and compact size, which offers convenient operation and installation. The modular design make the product suitable for using with output modules. The for turbine flow meter can be widely used to measure die sel gasoline, kerosene, methanol and so on. Specifications: Material: Plastic Size: 9x5cm/3.54x1.96 in 1x Flowmeter Display Chip _x000D_