Aquaphon A 50 – Compact Microphone Technology

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Product Specifications

Brand Name Sewerin
Country of Origin Germany
Model Name Aquaphon A 50
Filters bandpass adjustable filter limits

  • Lower filter limit : 0/30/60/120/250/500 Hz
  • Upper filter limit : 300/500/850/1000/1250/1500/2000/3000/4000/8000 Hz
  • Notch filter : 50 Hz, 60 Hz, Off
Memory None
Display 2” FSTN display 240 x 128 pixels, LED Backlight
Power Lithium-Ion battery (rechargeable)
Battery Life > 20hrs
Operating Temperature -20°C to +50°C
Weight 0.4kg



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Product Details
Provides professional, electro-acoustic water leak detection. The A 50 receiver and various microphones make the prelocation and pinpointing of leaks possible. When both microphone and headphones are attached, the device boast impressively high reproduction quality. The display helps by visualizing the noise to provide reliable, differentiated evaluations. With a fully charged battery, the A 50 receiver is ready for use for an entire work week. Light, handy, small – the receiver is cleverly compact and easy to carry. When the a 50 SDR (sewerin digital radio) module is used and the F8 wireless headphones are connected, there are no cables to affect the sound quality or restrict your movement.

Product Features/Highlights

  • Available is SDR (Sewerin Digital Radio) version – wireless connections to microphone and headphone.
  • Maximum carrying convenience – practical dimensions and low weight make the compact A50 receiver perfect for everyday use.
  • Escpecially efficient solution for electro-acoustic water leak detection.
  • Long availability – even without recharging – thanks to powerful battery technology.
  • Extremely compact, lightweight, handy housing with belt clip – for convenient, effortless carrying and maximum freedom of movement; ready for use at all times.
  • Adjustable filters
  • Illuminated display with optimized tilt angle and automatically changing display (180° rotation) making it easy to read the receiver regardless of position.


Whats Included in the package:

    1. A 50 receiver with or without SDR Module
    2. K3 headphone or F8 wireless headphone (depending on SDR module availability)
    3. Carrying Strap
    4. AC/DC Adapter (charger)
    5. Microphone equipment and accessories
    6. Backpack or carrying bag


The product images shown may represent the range of product, or be for illustration purposes only and may not be an exact representation of the product.

Additional information

Model Type

With SDR (sewerin digital radio) – wireless, Without SDR – wired


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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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