brand new and high quality Features: Made of high quality ABS and metal it is solid, durable and good performance, serve you for a long for time. 0.3-10L/min, high efficiency, stable performance. G 1/4" fast connection interface, easy to install. Suitable for water dispenser, water heater and so on. Water flow sensor only, other accessories demo in the picture is not included! Specification: Material: ABS, Metal Output voltage: for DC 5V Monitoring range: 0.3-10L/min Interface: G 1/4" Length: app.3.5 x 2.8 x 5.4cm/1.38 x 1.10 x 2.13in Color: White Quantity: 1 Pc Product Parameters: Start water flow: Less than 0.2 L/min Starting water pressure: Less than 0.1 Mpa Working flow range: 0.2-8 L/min Pay attention to clean the air impeller on the residual water when the output signal is not higher than 150HZ, idle for time should be 30 seconds. Max. withstand water pressure: 0.8 Mpa Operating voltage range: 3.5-12 VDC Operating current: 0.51.5 MA Working environment temperature: 1-100 Applicable ambient temperature: 40-100 Output characteristic: (32xQ)Q for traffic L/min, Hz (Hz); Error 3% Service life: 106 H Electrical strength: Over 600 VAC, Duration of 5S leakage current 3mA Insulation resistance: Over 100m, The insulation resistance between the connector and the for shell body or the for valve body. Note: No retail package. Please allow 0-1cm 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. Thank you! Package includes: 1 x Water Meter Flow Sensor