Leak Detector

Paket Leak Detector

Acoustical Leak Detector

XLT-30 by Fisher Research

Detects and pinpoints liquid leaks in pipes.


The Fisher XLT-30 takes leak detection to a new level with advanced electronic amplification and filtering. An all-tactile keypad along with an easy to read digital display enables even the novice to become proficient at leak detection.
The advanced microprocessor enables ENHANCEMENT of the weakest sounds like those in non-metallic pipes or those in sound muffling conditions. The XLT-30 is also designed to reject most loud interfering noises like wind, motors, and traffic.
New to the filtering selection is a Notch feature that allows independent suppression of an outside interfering sound, allowing the user to selectively tune to the desired leak noise.
In the Fisher tradition, the XLT-30 is affordable, tough, and simple to use while providing maximum performance. A two-year limited war­ranty comes standard with the unit.



  • Detects and pinpoints liquid leaks in pipes.
  • Notch filter for external noise suppression.
  • Ultra low amplifier noise.
  • Peak hold feature on LCD bar-graph for sound comparison.
  • Automatic limiter system to enhance weak noise sources.
  • Shielded sensor for reduced response to outside noise.
  • Improved headset for clearer sound response.
  • Tactile keypad & digital display, backlit for low light usage.
  • Increased response in poor sound conductors.
  • Automatic battery test and monitoring.
  • Operates on two 9 Volt batteries.


XLT-30 Specifications
Specifications subject to change without notice.
  • Operating Frequency:

    All-pass mode: 60 Hz – 60 kHz

    Filter mode: 60 Hz – 2.4 kHzFilter Types:

  • Independent notch filter

    Lowpass, highpass, or bandpassGain: 95 dBOutput Indications:

  • Audio: High-performance headphones

    (64 ohms)

    Visual: LCD bargraph and 2-digit numeric displayPower:

  • Batteries: 2 ea. 9 Volt alkaline

    Battery Test: Automatic

    Battery Life: 50 hrs (approx.)

  • Weight:

    Housing: 1.2 lbs

  • Bigfoot Sensor: 4.5 lbsCase Dimensions: 8-¼” x 8-½” x 32-½”


  • Standard Equipment:

    Hard carrying case

    Operation manualOptional Equipment:

  • Little Foot Assembly


2-Year Warranty

Fisher warrants the XLT-30 to be free of defects in material and workmanship when it is shipped from the factory. The terms of this warranty are fully explained in a warranty registration card that accompanies the instrument. Complete factory and field service facilities support the warranty. Warranty may vary outside the U.S. Please see Corrosion Control Products Company for details.