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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
Specifications
YSR03 technical data
| Parameter | Value |
|---|---|
| Speed Measurement Range | 0.05–40 m/s |
| Speed Measurement Accuracy | ±0.01 m/s (Radar simulator calibration) |
| Resolution | 1 mm/s |
| Maximum Distance Range | 65 m |
| Distance Measurement Accuracy | ±1 mm |
| Power Supply Range | 7–28 VDC |
| Communication Interface | RS485 (Baud rate), Bluetooth (5.2) |
| Communication Protocol | Modbus (9600/115200) |
| Operating Temperature | -40–85 °C |
| Dimensions (mm) | 171.58 × 77.12 × 87.12 |
| Protection Rating | IP68 |
| Installation Method | Bracket |
Applications
Where the YSR03 is used
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
- 01
Send Requirements
Medium, range, output and quantity.
- 02
Quote in 12h
Matched model, price and lead time.
- 03
Pre-shipment Check
Every unit inspected against spec.
- 04
Ship FOB / CIF
Export documents handled for you.
Request a Quote
YSR03 Online Radar Flow Velocity Meter
Sales engineer replies within 12 hours
Or WhatsApp +86-15958288207
YSR03 questions
What ranges are available for the YSR03?
What is the MOQ and lead time?
Can the YSR03 be customized?
Do you manufacture this transmitter?
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.




