compressed air leak detector / ultrasonic / for small leaks / for industry
LD 400 CS Instruments GmbH & Co. KG



  • Detected fluid:

    compressed air

  • Technology:


  • Applications:

    for small leaks, for industry


If gases escape through leaks in piping systems (e.g. untight screwed connections, corrosions and so on) ultrasonic noises are generated. With the LD 400 even the smallest leakages which cannot be heard by the human ear can be detected. The LD 400 transforms inaudible signals into a frequency which can be identified. By means of the comfortable sound-proof headset these noises can be realized even in extremely noisy environments.

Due to a particularly designed acoustic trumpet the leak detector LD 400 achieves a better focusing of the acoustic waves. This acoustic trumpet acts like a directional microphone while interfering ambient noises are cushioned and the accurate localization of the leakages is eased even in areas which are difficult to access.
Special features of LD 400

Robustness and the little weight ensure a fatigue-proof use in industrial environments
Improved detection of leaks with optional acoustic trumpet
Modern lithium-ion battery with high capacity, external recharger
Minimum operating time 10 h
Easy operation via keypad

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