Gravity: Liquid Flow Sensor

SKU: SEN0551

This Gravity: liquid flow sensor is designed based on the electromagnetic principle. It adopts O-ring rubber seal and uses silicone sealant at the outlet end to strength water-resistance. With high anti-interference and anti-impact, the sensor offers reliable performance and long service life. Also, it is designed with G3/4 thread connectors for easy installation. The sensor can be used with microcontrollers like Arduino UNO to measure the flow of liquids with high concentration and low viscosity like water, diesel, engine oil, milk, paint, detergent, honey, etc. (no impurity in liquid)

Front of small red and black liquid flow sensor with wires and text-DFRobot product sku:SEN0551 image.

Downloadable Resources

  • Docs
  • Tech Specs
  • Specification

    Parameter Value
    Operating Voltage DC3.5~24V
    Operating Current ≤10mA (DC5V)
    Output Mode NPN pulse signal
    Pipe Diameter G3/4
    Thread I.D. 16mm/0.63"
    Thread O.D. 26mm/1.02"
    Thread Length 18.7mm/0.74"
    Water Pressure Resistance ≤1.2MPA
    Insulation Resistance >100MΩ
    Flow Range 30-3000L/H
    Error ±1% (20-3000L/H)
    High Level of Output Pulse >DC4.7V (input voltage DC5V)
    Low Level of Output Pulse <DC0.5V (input voltage DC5V)
    Duty Cycle of Output Pulse 50%±10%
    Flow & Pulse Correlation 1L=75 pulses
    Operating Temperature ≤80°C
    Operating Humidity 35%~90%RH (no frosting)
    Storage Temperature -25°~+80°C
    Storage Humidity 25%~95%RH
    Dimensions 92×47×39mm/3.62×1.85×1.54"

    Pinout

    Num Label Description
    Green Wire OUT Signal Output
    Red Wire VCC Positive Power Supply 3.5V-24V
    Black Wire GND Negative Power Supply

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