Generic YF-S402 High Precision Flow Meter Water Flow Sensor;

Minimum rated working voltage: DC 5~24V;
Max. working current: 15mA (DC 5V);
Working voltage range: DC 5~18V;
Load capability: <= 10mA (DC 5V);
Working temperature: <= 80'C;
Humidity range: 35%~90%RH (no frost);
Water pressure: <1.75Mpa;
Storage temperature: -25~80'C; Storage humidity: 25~95%RH;
Flow range: 1~5L/min'; Frequency: 4380 pulse for 1L through the sensor
Dimensions: 2.28 in x 1.38 in x 1.06 in (5.8 cm x 3.5 cm x 2.7 cm)
Thread Size : G1/4"
Weight: 1.02 oz (29 g)

Packing List
1 x Flow meter (17cm-cable)