BIDI Logger

Water loss management in water distribution networks is increasingly getting away from acute leak detection but becoming popular for monitoring through acoustical zone inspection. Thereby water leaks getting detected virtually in real time and can get repaired directly after they appear. Hence time consuming and costly leak surveys will be outdated.

With the new BIDI loggers from F.A.S.T. is now a product on the market that ties in with this trend. Whether it gets used as a conventional monitoring system, or extended to a self-transmitting monitoring network – the BIDI logger stick out with their very easy programming and with their unique functions. The possibility to correlate between two loggers who receive a leak noise, gives the operator already information’s about the exact leak spot.


Technical data:

Bi-directional programming

  • Date and Time
  • Duration of measurement window
  • Time of measurement window
  • Frequency of measurement
  • Data transfer window
  • Data transfer frequency
  • Amplification factor for noise signal
  • Transmission power

Data collection

  • Statistical minimum for previous measurement window
  • Noise level of last 14 measurements
  • Frequency spectrum
  • Logger number
  • Logger position
  • Audio file


  • 2-point digital FFT Correlation
Transmitter power: 10 mW
Frequency: 433 MHz
Connection/Port: Bi-directional Radio
Dimension: diameter. 40 mm
Weight: approx. 450 g
Amplification factor: 200.000-fold
protection class: IP 68
Temperature Range: -15 C to +55 C


Fuji Leak Noise Logger Leak Monitoring Brochure

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