float-water-level-sensor

Float Water Level Sensor for River, Reservoir & Flood Monitoring Systems

Reliable Digital Water Level Measurement Solution for Hydrological Stations, River Monitoring and IoT Telemetry Networks

Product Introduction

The KH.WFH Float Water Level Sensor is a reliable hydrological monitoring device designed for continuous water level measurement in rivers, reservoirs, lakes, and natural water environments.

Using a proven mechanical float measurement principle combined with electronic signal processing, the sensor converts vertical float movement into stable digital signals for real-time water level monitoring.

The float water level gauge provides long-term reliable operation for hydrological observation networks, flood early warning systems, and remote water monitoring applications where stability and durability are essential.

It is widely applied in:

  • River water level monitoring
  • Reservoir water level management
  • Lake and natural water body observation
  • Flood early warning systems
  • Pumping station and drainage monitoring
  • IoT-based hydrological monitoring networks

The KH.WFH provides dependable water level data for water resource management, environmental observation, and flood prevention applications.

How It Works

The KH.WFH uses a mechanical float measurement principle.

As the water level changes, the float moves vertically according to the water surface position. The mechanical displacement is converted into digital electrical signals through the sensing mechanism and transmitted to monitoring systems.

This measurement method provides:

  • Stable long-term water level measurement
  • Simple and reliable sensing principle
  • Proven performance in natural water environments
  • Continuous monitoring capability for remote stations

Key Features

Stable Mechanical and Digital Hybrid Design

Combines a proven float mechanism with electronic signal processing to provide reliable long-term water level monitoring.

High-Accuracy Water Level Measurement

Provides precise water level measurement suitable for hydrological observation stations, flood monitoring systems, and water resource management applications.

Power-Off Memory Function

Maintains measurement information during power interruptions, helping ensure data continuity in critical monitoring environments.

Flexible Signal Output Options

Supports integration with different monitoring systems through:

  • Parallel Gray Code
  • SSI Gray Code
  • 4–20mA analog output
  • RS485 communication

Durable Outdoor Construction

Corrosion-resistant materials and stainless steel components ensure stable operation in outdoor hydrological environments.

Designed for Long-Term Deployment

Suitable for continuous operation in remote and unattended hydrological monitoring stations requiring reliable data acquisition.

Application Scenarios

River Water Level Monitoring

Provides continuous river level observation for hydrological stations, watershed monitoring, and flood early warning systems.

Reservoir Water Level Management

Supports reservoir operation, water storage monitoring, and flood risk assessment.

Lake and Natural Water Body Monitoring

Provides stable long-term water level data for environmental research and hydrological observation.

Pumping Station and Drainage Monitoring

Used in stormwater management systems, drainage infrastructure, and flood prevention networks.

IoT Hydrological Monitoring Networks

Integrated with telemetry systems, SCADA platforms, and smart water monitoring networks for remote data management.

Technical Specifications

ParameterSpecification
Measuring Range0–5 m, 10 m, 20 m, 40 m, 80 m (customizable)
Water Level Change Rate<100 cm/min
Resolution1 cm
Starting Torque of Measuring Wheel<100 g·cm (0.0098 N·m)
Measurement Accuracy≤±2 cm or 0.2% FS
Display MonitorMechanical decimal counter
Working Circumference of Wheel32 cm
Counterweight Diameterφ20 mm
Measuring Cableφ0.8 mm stainless steel cable
Float Diameterφ50 mm, φ100 mm, φ150 mm optional
Contact Resistance≤0.5 Ω
Insulation Resistance≥10 MΩ
Output SignalsParallel Gray code, 4–20 mA analog, RS485 serial, SSI Gray code (based on encoder selection)
Ambient Temperature−30℃ ~ +85℃
Relative Humidity≤95% RH (at 40℃)
Reliability IndexMTBF ≥ 25,000 hours
Operating VoltageMatches selected encoder
Inquiry Type
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