YSR03YSR03 Online Radar Flow Velocity Meter
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  • CE & EMC Certified
  • 12-Month Warranty
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Flow Meters
YSR03Radar Flowmeter

Online Radar Flow Velocity Meter

This radar flow meter measures water flow velocity and liquid level non-contactly, then calculates flow rate using an integral model; velocity range 0.05–40 m/s, ±0.01 m/s accuracy, 1 mm/s resolution, and RS485 Modbus-RTU/Bluetooth output. It also measures distance up to 65 m with ±1 mm accuracy, suitable for 24/7 monitoring of rivers and open channels.

Speed Measurement Accuracy
±0.01 m/s (Radar simulator calibration)
Speed Measurement Range
0.05–40 m/s
Operating Temperature
-40–85 °C
Power Supply Range
7–28 VDC
  • Non-contact hybrid frequency radar; outputs velocity, level, and flow rate simultaneously
  • Unaffected by silt or contaminants; IP68 waterproof for outdoor and extreme weather
  • Integrated reverse connection, lightning, and overvoltage protection
  • Supports Modbus-RTU protocol and Bluetooth debugging via mobile phone
  • Compact and stylish design, offering excellent value for money
PDFYSR03 DatasheetRanges, outputs, dimensions and wiring
CECE certified · EMC 2014/30/EUCert. HTT202606786E · tested by HTT · covers YS seriesCertificateTest report

Specifications

YSR03 technical data

ParameterValue
Speed Measurement Range0.05–40 m/s
Speed Measurement Accuracy±0.01 m/s (Radar simulator calibration)
Resolution1 mm/s
Maximum Distance Range65 m
Distance Measurement Accuracy±1 mm
Power Supply Range7–28 VDC
Communication InterfaceRS485 (Baud rate), Bluetooth (5.2)
Communication ProtocolModbus (9600/115200)
Operating Temperature-40–85 °C
Dimensions (mm)171.58 × 77.12 × 87.12
Protection RatingIP68
Installation MethodBracket

Applications

Where the YSR03 is used

Water supply
Chemical dosing
HVAC
Food & beverage
Irrigation

Ordering

Terms & how ordering works

MOQ
1 pc (flexible, no minimum for most products)
Lead time
2-3 days for in-stock items, 15-30 days for custom orders
Warranty
12-month warranty on all products
Shipping
FOB Ningbo / CIF available
  1. 01

    Send Requirements

    Medium, range, output and quantity.

  2. 02

    Quote in 12h

    Matched model, price and lead time.

  3. 03

    Pre-shipment Check

    Every unit inspected against spec.

  4. 04

    Ship FOB / CIF

    Export documents handled for you.

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YSR03 Online Radar Flow Velocity Meter

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YSR03 questions

What ranges are available for the YSR03?
Standard coverage is 0.05–40 m/s. Other spans, outputs, and process connections can be sourced to match the application. Send the working pressure and medium and we will confirm the exact option.
What is the MOQ and lead time?
1 pc (flexible, no minimum for most products). 2-3 days for in-stock items, 15-30 days for custom orders. Samples are available, with freight on the buyer’s account.
Can the YSR03 be customized?
Range, output signal, process connection, cable length customizable through our supply partners.
Do you manufacture this transmitter?
SIBXSUN is an industrial instrumentation supplier in Ningbo, not the factory. We source the YSR03 from qualified partners, inspect before shipment, and handle export documents and logistics.

Need the right online radar flow velocity meter for your process?

Send the medium, range, output, and quantity. We will confirm the matching option and a FOB Ningbo quote.

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