Category
Float Water Level Sensor for River & Reservoir Monitoring | Digital Hydrological Level Gauge for Flood Monitoring Systems
High-accuracy float water level sensor for rivers, reservoirs, lakes, and hydrological monitoring systems. Reliable digital level gauge for flood warning and IoT telemetry applications.
Product Introduction
The KH.WFH Float Water Level Gauge is a high-precision liquid level sensor designed for continuous monitoring of water levels in rivers, reservoirs, lakes, and hydrological monitoring environments.
It combines a mechanical float system with electronic signal processing, converting vertical displacement into stable digital signals for real-time water level measurement.
This solution is widely used in hydrological monitoring stations, flood early warning systems, river level observation networks, and IoT-based environmental monitoring platforms, where long-term stability and reliability are required.
How It Works
The float moves up and down according to water level changes. This mechanical motion is converted into digital electrical signals for continuous monitoring and data transmission.
This ensures:
- Stable long-term measurement
- Simple and proven sensing principle
- Reliable operation in natural water environments
Key Features
1. Stable Mechanical + Digital Hybrid Design
Combines float-based sensing with electronic signal processing for long-term reliable water level monitoring.
2. High Precision Water Level Measurement
Measurement accuracy up to ≤±2 cm or 0.2% FS, suitable for hydrological observation and flood monitoring applications.
3. Power-Off Memory Function
Retains measurement data during power interruptions, ensuring data continuity in critical monitoring systems.
4. Flexible Signal Output Options
Supports:
Parallel Gray Code
4–20 mA analog output
RS485 communication
SSI Gray Code
5. Durable Outdoor Construction
Corrosion-resistant materials and stainless steel components ensure stable operation in harsh hydrological environments.
6. Long-Term Monitoring Capability
Designed for continuous deployment in remote and unattended hydrological monitoring stations.
Application Scenarios
River Water Level Monitoring
Used for continuous river level observation in hydrological monitoring and flood early warning systems.
Reservoir Water Level Management
Supports water level tracking for water resource planning and flood risk assessment.
Lake & Natural Water Body Monitoring
Provides stable long-term water level data for environmental and hydrological studies.
Pumping Station & Drainage Monitoring
Used in stormwater systems and flood prevention monitoring networks.
IoT Hydrological Monitoring Networks
Integrated into telemetry systems, SCADA platforms, and smart water monitoring networks.
Technical Specifications
| Parameter | Specification |
|---|---|
| Measuring Range | 0–5 m, 10 m, 20 m, 40 m, 80 m (customizable) |
| Water Level Change Rate | <100 cm/min |
| Resolution | 1 cm |
| Starting Torque of Measuring Wheel | <100 g·cm (0.0098 N·m) |
| Measurement Accuracy | ≤±2 cm or 0.2% FS |
| Display Monitor | Mechanical decimal counter |
| Working Circumference of Wheel | 32 cm |
| Counterweight Diameter | φ20 mm |
| Measuring Cable | φ0.8 mm stainless steel cable |
| Float Diameter | φ50 mm, φ100 mm, φ150 mm optional |
| Contact Resistance | ≤0.5 Ω |
| Insulation Resistance | ≥10 MΩ |
| Output Signals | Parallel 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 Index | MTBF ≥ 25,000 hours |
| Operating Voltage | Matches selected encoder |
