High Precision Water Flow Sensor With RS485 Output And NPN Pulse Signal

Accurate, real-time water flow measurement is delivered by this High Precision Water Flow Sensor with RS485 output and NPN pulse signal, enabling seamless integration with controllers, PLCs, and data loggers.

Designed for rugged environments, it withstands temperatures from -20°C to 80°C and supports water pressures up to 1.75 MPa. Available in DN15, DN20, DN25, DN32, DN40, and DN50 sizes to match your piping. Flow ranges vary by size: DN15 1–30 L/min; DN20 2–60 L/min; DN25 2–100 L/min; DN32 2–120 L/min; DN40 5–150 L/min; DN50 10–200 L/min. Outputs include RS485 data stream for robust digital communication and an NPN pulse signal for straightforward interfacing with microcontrollers.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Benefits & Tips

• Use RS485 for reliable multi-point monitoring in industrial networks.
• Count flow events easily with the NPN pulse output for microcontrollers or PLCs.
• Ideal for irrigation, water metering, or process control where precise flow data matters.

Product specifications

• Flow Sensor Type: High Precision Liquid Flow Rate Sensor with RS485 Output and NPN Pulse Signal
• Size options: DN15, DN20, DN25, DN32, DN40, DN50
• Flow Range: 1–30 L/min (DN15); 2–60 L/min (DN20); 2–100 L/min (DN25); 2–120 L/min (DN32); 5–150 L/min (DN40); 10–200 L/min (DN50)
• Operating Voltage: DC 3.5V–24V
• Water Pressure Resistance: ≤1.75 MPa
• Temperature Range: -20°C to 80°C
• Pulse Output High: >DC 4.7V (at DC 5V input); Pulse Output Low:
• Insulation Resistance: >100 MΩ
• Sealing Performance: 1.7 MPa water pressure test, no leakage
• Certifications: CE, RoHS
• Origin: Mainland China
• PCB included: No
• Brand: NONE

Package includes:

• Water Flow Sensor ×1

Providing quality and trusted service since 2002 at intercyprus.com.