Features: Thread: 1.25inch, flows ranges: 3-120L/MIN±1%, volatge: 5-24VDC. All steel structure, good sealing Performances, easy to install. Wiring: Red-in-Positive/Yellow-out-signal output/Black--Negative. The water- flows Meter consists of steel body, flows Rotors- assembly and hall Meter . Widely used in petrochemical industry, farmland- irrigation, waterwork-, residential water flows- control, swimming pool, water - construction, river thinning and other water- flows control fields-. Specifications: Material: steel Size: approx 4.7x4.7x6.4cm/2x2x2.5in Operating Electric ranges: 5-24VDC Maximums operating current: 15mA (DC5V) Load capacity: equal or less than 10mA (DC5V) Allowable pressure equal or less than1.75mpa Storage temperature/Moisture : -25 to +80°C/25% to 90%- flows ranges: 3-120L/MIN±1% Pulse characteristics () =[1.08xQ]±5%, which is 128 pulses per liter of water Inner diameter/outer diameter inlets inner diameter 32.5mm, outlet inner diameter 30mm/ outer diameter 41.5mm The length of screw teeth is 16mm Output pulse high level : more- than DC4.5V (input Electric DC5V Output pulse low level: The output pulse duty ratio is 50±10% Package Includes: 1xWater- flows Meter note: Please allow 1-3cm error due to manual measurement. make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.