Stethophon 04 – Compact Listening Device

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Product Specifications

Brand Name Sewerin
Country of Origin Germany
Model Name Stethophon 04
Filters 8 permanently set filter bands
Memory None
Display LCD, 100 segments
Power 2 AA-size alkaline batteries or 2 NiMh rechargeable battery
Battery Life 8hrs
Operating Temperature -10°C to +50°C
Weight 290g


Available on backorder

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Product Details
The Stethophon 04 is a listening device for detecting and amplifying structure-borne noise of all types. It provides undistorted sound reproduction even for very low noise. In addition to a version with cable headphones, the SDR (Sewerin Digital Radio) Module offers sound transmission of the same quality as with a cable connection. Eliminating the cable increases working conform significantly. The headphones and the device are automatically connected significantly. The headphones and the device are automatically connected by directional radio when switched on.

Product Features/Highlights

  • Wireless headphones using digital signal transmission (SDR)
  • External ground microphone
  • 8 filter levels
  • Hearing protection function
  • Numerical display of minimum noise level (0 – 1000)
  • Minimum operating time hours
  • Lightweight packaging, the sound detector only weighs 290 g
  • Handy dimensions: just 50x228x30mm (WxHxD)


Whats Included in the package:

    1. Stethophon 04
    2. Wireless Headphones
    3. Ground Microphone
    4. Probe tip
    5. Chargers
    6. Transport Bag


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Technical Data Sheet

AJA NRW Solutions, Inc.


AJA NRW Solutions, Inc. started its corporation Dec. 2015. The company’s trust and confidence lie in providing the Water Industry a Non-Revenue Water (NRW) solutions, sales and contracting services.


AJA NRW Solutions as a market leader organization, we are committed in providing top integrated standard of NRW Solutions and distribution, effective services, and delivering high integrated and effective products/services without compromising the safety, health and well-being of our employees.


AJA NRW Solution is also committed in achieving customer satisfaction thru its consistent and best-value services that a QMS to continually improve the level standard in order to cope-up with increasing demands of industry and compliance to statutory and regulatory requirements. Committed to provide the Water Industry most economical and effective NRW reduction solutions sales and contracting services by using state-of-the-art technology available in the market. Using our business concept of “NO CURE – NO PAY” scheme ensures our client of committed services for performance-based projects.


List of its recommended NRW solutions are:

  • Pressure Management
  • Leak Detection Activity
  • Meter Accuracy, Proper Sizing, and Replacement Program
  • Maintenance and Technical Support
  • NRW Training and Operations
  • Pipe Replacement Program
  • Flow and Pressure Data Analysis
  • District Metering Analysis
  • NRW Consultancy Services



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