Summary Answer: A handheld radar flow meter is a non-contact measurement tool based on 24GHz microwave technology, with a measurement range covering 0.03~20m/s. Its core advantages include an IP65 protection rating and high accuracy of ±0.03m/s, making it particularly suitable for hazardous scenarios where contact with water is impossible, such as flood emergency response, river channel inspection, and sewage outfall monitoring.
Why is Non-Contact Radar Technology the Future of Hydraulic Testing?
In traditional flow velocity measurement, rotor-type current meters are susceptible to issues like sediment accumulation or debris entanglement. Handheld flow meters based on 24GHz radar frequency measure surface wave fluctuations using the Doppler effect, completely solving the following pain points:
Safety: Operators do not need to enter the water, with a maximum measurement distance of up to 100 meters.
All-Weather Operation: Capable of stable operation in extreme environments ranging from -20°C to +70°C.
Automatic Compensation: Even if there is a deviation in the handheld angle, the device’s built-in **automatic horizontal and vertical angle compensation function (±60°) ensures data accuracy.
Core Parameters: Physical Indicators Determining Measurement Accuracy
To facilitate quick comparison for procurement managers and technical engineers, we have compiled the core parameters of this device as follows:
Feature | Technical Specification |
Measurement Principle | Radar (Doppler Effect) |
Flow Velocity Range | 0.03 ~ 20 m/s |
Measurement Accuracy | ±0.03 m/s |
Radio Frequency | 24 GHz |
Beam Angle | 12° |
Battery Life | 3100mAh Li-Ion, continuous operation >10 hours
Data Storage| Capable of recording 2000 measurement results
Quick Start: Instrument Structure and Button Functions
For field testing personnel, the device’s ease of use directly impacts data collection efficiency. This model features an ergonomic handle design:
1. Radar Transmitter (Front): 12° emission angle, facing the flow direction.
2. HD LCD Screen: Displays real-time current velocity, maximum, and minimum values.
3. Quick Measurement Button:** Located at the handle trigger, allows one-handed sampling activation.
4. Smart Button Area:** Includes Menu, OK, and Up/Down navigation keys, supporting quick access to historical data queries.
Typical Application Scenarios: From the Lab to Field Operations
As experts with years of experience supplying hydraulic equipment, we recommend prioritizing the use of this device in the following scenarios:
River Channel and Irrigation District Inspections:** For rapid spot-checking of flow velocity in open channels and natural rivers.
Sewage Outfall Flow Monitoring:At chemical plants or municipal outfalls, non-contact measurement effectively avoids corrosive liquids.
Flood Emergency Monitoring:During flood periods with abundant debris, radar technology is the only solution for safely obtaining data.
Agricultural Irrigation: Monitoring branch canal flow to provide accurate data support for water rights allocation.
Engineer’s Advice: How to Improve Measurement Accuracy?
Based on our practical testing experience, please note the following “pitfalls” when using a handheld radar flow meter:
Avoid Wind and Wave Interference:Strong winds can alter surface wave characteristics. It is recommended to maintain an angle between 30° and 60° between the instrument and the water surface during measurement.
Utilize Automatic Compensation:Although the device supports angle compensation of ±60°, try to hold it vertically for optimal signal strength.
Data Synchronization: After measurement, sync the 2000 data sets to a computer via **Bluetooth or USB interface** to avoid errors in paper records.
Conclusion: Upgrade Your Surveying Equipment
The handheld radar flow meter is not just a speed measurement tool; it is a key node in enhancing the digitalization level of water conservancy. With its IP65 protection rating and standby time of up to 6 months, it is a reliable partner for your field work.
Complete set of servers and software wireless module, supports RS485 GPRS /4g/WIFI/LORA/LORAWAN
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please contact Honde Technology Co., LTD.
WhatsApp: +86-15210548582
Email: info@hondetech.com
Company website: www.hondetechco.com
Post time: Jan-12-2026