ITEM NAME:Flow Sensor G1/2'' Water Flow Hall Sensor Switch Flow Meter Flowmeter 1-25L/min G1/2" Water Flow Hall Sensor Switch Flow Meter 1-25L/min For Industrial Control Material: Metal+Plastic Model:YF-B1 Rated Voltage:DC 5V Working Range:1-25L/min Water Pressure:1.75MPa Operating Voltage Range:DC 5-15V Insulation Resistance:>100M ohm Output Pulse Duty Cycle:50%+/-10% Size: about 4.4cmx1.9cm [Conversion: 1cm=0.3937 inch, 1inch=2.54 cm] 1 x Water Flow Sensor.Output Pulse Duty Cycle:50%+/-10%. 1 x Water Flow Sensor. Size: about 4.4cmx1.9cm. Water Pressure:1.75MPa. Working Range:1-25L/min. Also note that monitor settings may vary from computer to computer and may distort actual colors.