ATEX certificated for the use in areas with risk of explosion


The SONAPHONE E is designed for the rapid, reliable and cost-effective detection of seal failures and the smallest of leaks within compressed air systems and networks, vacuum systems, industrial equipment and machinery and covered pipes with restricted access. The ultrasonic detection device enables the early detection and avoidance of potential damages and resulting cost savings.


The regular inspection of engines, pumps and gearing using the SONAPHONE E leads to increased operational reliability and guarantees a higher degree of availability of machinery. By means of the flow noise the inspection of the leak tightness of valves, slide valves and steam traps is possible. The option of an additional ultrasonic transmitter allows the control of the leak tightness of windows, doors, cabins and devices with little additional expense.

Defect induced noises and wear to various machinery components and rotating machinery can be recorded electronically. In addition to all individual and serial testing procedures, all irregularities can be transferred to a PC online and presented and archived in graphic and tabular format.

An efficient integrated data logger enables the rapid transfer of data between the device and your computer via a USB interface.The addition of an optional temperature sensor allows the measurement and simultaneous recording of surface temperatures of up to 800 °C. The SONAPHONE E has a user-friendly display and PC software with logical menu navigation.

Due to its intrinsically safe construction design, the SONAPHONE E is also suitable for use in areas with risk of explosion.


  • for use in potentially explosive atmospheres
  • integrated data logger
  • multifunctional testing device
  • easy handling

Technical data

Transmission frequency

20-60 kHz


190x110x85 mm

  • Ultrasonic sensor
  • Temperature sensor
  • Headphone
  • USB interface (USB 2.0)

Graphical display with Background lighting

Temperature Measurement Range

0-800 °C


Approx. 600 g


5 AA batteries (operating time approximately 8 hours)


Shock resistant plastic with wipe-clean membranekeyboard

Explosion Protection
  • Ex ia IIC T4 Gb or
  • Ex ia IIB T4 Ga


  • Air-borne probe L 60
    Applications: leak detection, proof of seal failure6
  • Acoustical horn for long distances
    Attachment for airborne probe L60
    Applications: leak detection and detection of partial discharges over long distances
  • Contact Probe L 61
    Applications: inspection of valves, slide and safety valves
  • Contact Probe L62
    Applications: testing of steam traps
  • Flexible air-borne sound probe L 63
    Applications: leak detection at places, difficult to access



Interested in our offer?

Write to us

Grzegorz Pieniążek
Grzegorz Pieniążek
Key Account Manager
+48 606 614 463
+48 (12) 426 97 63

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