DFRobot Gravity Liquid Flow Sensor G1/2 - NPN Pulse Signal
The DFRobot Gravity Liquid Flow Sensor (G1/2) is a digital flow meter with an NPN pulse output, compatible with 3.5-24V DC systems and microcontrollers like Arduino and Raspberry Pi for measuring the flow rate of clean, low-viscosity liquids.
Features
- G1/2 threaded (20.5mm OD) flow sensor with NPN pulse output for direct microcontroller interface.
- Wide operating voltage range from 3.5V to 24V DC with low current consumption (≤10mA at 5V).
- Measures flow rates from 30 to 1200 liters per hour (L/H) with a 50%±10% duty cycle pulse signal.
- Robust construction with O-ring rubber seal and silicone sealant for reliable waterproof operation up to 1.2 MPa pressure.
- Gravity-series compatible connector for simplified wiring and integration into Arduino-based liquid monitoring systems.
Out of stock
Based on an electromagnetic sensing principle, this flow sensor generates a digital NPN pulse signal proportional to the liquid flow rate. A pinwheel inside the sensor body rotates as fluid passes through, and the embedded Hall effect sensor converts this rotation into a clean, square-wave pulse output suitable for direct connection to digital input pins on microcontrollers. The sensor is designed for reliable, long-term operation with high anti-electromagnetic interference and anti-vibration capabilities.
The sensor body features G1/2 pipe threads (20.5mm outer diameter, 29mm thread length) for easy inline installation in liquid systems. It is rated for operating temperatures up to 80°C and is constructed with an O-ring seal and silicone sealant to ensure waterproof integrity, making it suitable for monitoring water, diesel, oils, and other low-viscosity, impurity-free liquids in industrial and DIY projects.
Additional Information
| Weight | 0.123 kg |
|---|---|
| Dimensions | 9 × 7 × 4 cm |
