Fuji Leak Noise Detector LDR-20

Water Device Instruments

Fuji LDR-20 Water Leak Detector is a high-sensitivity leak detection device engineered to accurately detect leakage sounds, even in deep pipelines or those with large diameters. Compared to its predecessor, the LDR-20 offers a more compact design, easier operation, and compatibility with Android applications for visual display.

Key Features

2.5x Higher Sensitivity
Effectively detects leak sounds from deep pipelines, large-diameter pipes, and low-pressure systems—outperforming conventional detection methods.

Dual Notch Filter & Volume Control
Enables users to eliminate background noise and adjust volume levels to suit various environments.

Compact & Lightweight Main Unit
Easy to handle and carry, making it ideal for field inspections and long-duration usage.

Android App Connectivity
Measurement data can be displayed visually and graphically via Bluetooth connection to an Android smartphone app.

Item Description
Model LDR-20
Detection Method Acoustic leak detection with sensor & visual display
Filter Functions High-pass filter: 2 modes (wide/narrow)
Low-pass filter: 2 modes (wide/narrow)
Notch filter: 2 modes (narrow: 150Hz, wide: 180Hz)
Additional Functions Volume control, Bluetooth (ver. 5.0), Android app compatibility
Display OLED
Battery Life Approx. 12 hours (depending on usage conditions)
Main Unit Weight Approx. 550g
Power Supply Rechargeable lithium-ion battery
  • Detecting water leaks in underground piping systems
  • Monitoring aging or leak-prone water pipe networks
  • Analyzing leakage sounds under low pressure
  • Inspecting and maintaining water distribution systems