Product Manual (pdf)

Product Introduction

The KH.WLX Non-Contact FMCW Radar Water Level Meter is a compact, lightweight, and high-precision water level monitoring instrument independently developed by KEHAO. Using Frequency Modulated Continuous Wave (FMCW) radar technology, it performs non-contact distance measurement and converts the detected surface distance into accurate real-time water level data.

Unaffected by rainfall, fog, sediment, waves, floating debris, or water impurities, the KH.WLX is ideal for long-term field deployment in complex hydrological environments. Featuring low power consumption, strong anti-interference ability, and a maintenance-free design, it ensures stable and reliable operation across a wide range of water monitoring applications.

Key Features

• Non-Contact FMCW Radar Measurement
  Performs water level measurement without direct contact with water, completely avoiding issues caused by fouling, sediment buildup, and floating materials.
• Compact and Lightweight Structure
  Small and lightweight design enables simple installation, especially suitable for narrow spaces, bridge mounting, culverts, urban drainage pipelines, and hard-to-access monitoring locations.
• High Accuracy and Fast Response
  Startup response time as fast as 100 ms, resolution up to 1 mm, and measurement accuracy up to ±2 mm, ensuring precise real-time monitoring.
• Industrial-Grade Environmental Protection
  Anti-condensation, waterproof design with enhanced lightning protection ensures safe and stable operation in outdoor, coastal, and high-humidity environments.
• Low Power Consumption Design
  Supports intelligent sleep and scheduled measurement modes, making it suitable for unattended, solar-powered, and IoT remote monitoring systems.
• Excellent Anti-Interference Performance
  Maintains highly stable measurement under harsh electromagnetic conditions, strong reflections, and complex environmental backgrounds.
• Flexible Communication Output
  Supports RS485 communication, allowing switching between ASCII and Modbus protocols for convenient system integration and data transmission.
• Multiple Radar Frequency Options
  Available in 24 GHz, 60 GHz, and 80 GHz versions to match different installation heights and environmental conditions, with optional 4G wireless data transmission.
• Wide Operating Temperature Range
  Engineered to operate reliably from -45 ℃ to +85 ℃, suitable for extreme climate regions including tropical, desert, and cold environments.
• High Protection Rating
  IP68-rated enclosure provides superior sealing capability for stable operation in wet, humid, and challenging field conditions.

Application Scenarios

• Continuous water level monitoring in rivers, lakes, reservoirs, and open channels

• Urban flood control, stormwater drainage monitoring, and sponge city projects

• Mountain flood early-warning systems and disaster prevention monitoring

• Water supply systems, sewage networks, pumping stations, and wastewater treatment auxiliary monitoring

Technical Specifications