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Oizom Air Quality MonitorsWe now offer air quality monitors from Oizom.  Monitor pollution, odor, dust, weather, sound, etc. on the web.


Microflown Gen 2 PU Regular

  • Extended Frequency Range
  • Improved Visual Tracking
  • Field Calibration
  • More Robust Design

We are now offering live online versions of our usual seminars.  These are in addition to our in-person courses.

  • Acoustics
  • Vibration
  • Signal Analysis

Sonotec Sonascreen

  • Leak Detection, Partial Discharge Localization, and Buzz, Squeak & Rattle
  • Shifts Ultrasound to Audible Range for Listening on Headphones
  • Adjustable Filters for Easier Source Location
  • Up to 100 KHz Bandwidth
  • Archiving and Reporting PC Software
  • Well Priced

Qoms1Monopole Omni-directional Source

  • Lightweight 2 lbs (0.9 kg)
  • 4.2" Diameter x 6.3" Height (106 mm x 160 mm)
  • 1/3 Octaves: 50-16,000 Hz
  • 109 dB Sound Power
  • ISO 3382 / 16283

Svantek 973

  • Class 2
  • MEMS Microphone with Lifetime Warranty
  • Wide Frequency Range up to 10 kHz
  • 1/1, 1/3 Octave and Audio recording
  • RT60 Reverberation Time Measurement in 1/1 or 1/3 Octave

Unlike other devices that are tuned to a very narrow frequency range, the Sonaphone senses from 20 - 100 KHz. To more easily find the target among other sources and noise, display the live color spectrogram then graphically choose and listen to a single, a portion, or all frequencies.


  • Continuous Healthy Monitoring
  • Detects Ferrous Particles
  • Suitable for Wide Deployment
  • 4-20 mA, 0-10 V, or CAN Bus Outputs
  • Compatible with Switches, Alarms, PLC's, and SCADAS
  • Temperature and/or Dielectric Alerts
  • Complements Periodic Oil Sampling Programs

GL840 Battery Testing

This app note introduces a simple and inexpensive method of simultaneously monitoring and recording voltage, current, temperature, humidity and other metrics related to battery testing.

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