Sonophone Pocket

Compact Ultrasonic Testing Device for Preventive Maintenance

Sonophone Pocket

Application field:
With the SONAPHONE Pocket you identify problems even before they arise and create value at all levels of your company. Just by detecting and eliminating leaks you can reduce the energy costs for your compressed air system up to 30 percent. This also has positive effects on your operational safety and system productivity through early warning of bearing failure and evidence of partial electrical discharges.

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  • leak detection with compressed air, gas and vacuum systems,
  • wear control on rotating machines
  • providing evidence of partial electrical discharges where there is insulation damage and
  • tightness testing of unpressurized systems.


  • Minimize downtimes: Recognize damage at roller bearings at an early stage, detect electrical partial discharges and increase operational reliability
  • Save energy: Locate leaks on compressed air, gas and vacuum systemsial environments with disturbing ultrasound
  • Save costs: save up to 30 % on energy costs for compressor system

Technical Specifications

Transmission Frequency 40 kHz, Bandwidth +/- 2 kHz
Functionality Detection of Ultrasonic Signals: Makes the Ultrasonic Signals audible and shows them on a digital Display Auto-Power-Off-Function
Display LC-Display with illuminated Background
Connections For different Ultrasonic Probes Stereo Jack Socket
Power Supply 2 AA Batteries or Accumulators
Operating Time Approx. 24 h
Dimensions WHD 85 x 130 x 30 mm
Weight Approx. 280 g
Operating Temperature -10 °C … +60°C
Storage Temperature -20 °C … +60°C
Protection Class Device: IP54; Probe: IP20
Accessories Probes, Headphones, Carrying Strap, Carrying Case, Instruction Manual
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