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Portable Vibration Monitoring Using Long Range 900 MHz Spread Spectrum Frequency Hopping Radios
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VMU208R_900 Great Plantwide Solution for Monitoring Bad Actors
The VMU208R-900 allows you to easily set up continuous monitoring when and where you need it. Without worrying about having short range Wi-Fi on the plant floor.

Save $1000's in Wiring Costs - When used with a RMS900S server radio and NCA, you can reach 100's of feet across a plant floor or 1000's of feet across a plant site.

Everything You Need - The VMU208R-900-SYS includes a VMU, NCA, power supplies, cables, antennas, and software. Everything, except sensors, necessary to bring vibration data to your desktop.

Monitor Your Entire Plant Site - Use Riotech's radio networks to continuously monitor all your plant equipment. 200 Series VMU's are more for portable monitoring while the 300 Series are designed for permanent installations.


Maximum Flexibility - For application where you need the most flexibility in setting up a wireless network the standard VMU208-SYS-R900 allows the VMU to be located separately from the VMU

Because RioNet uses RS485 technology, you can set a VMU with sensors close to a piece of equipment in a mine or basement and locate the radio up to 1000 feet away in a location conducive to rado transmission

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Includes all the above plus bright yellow, water resistant SERPAC case
Link to page that list premium or economy sensors configured to work with all VMU200 series modules

VMU - Specifications
  • Inputs
  • * Number Inputs Per Module: 5, 8
  • Type Inputs

  • * Acceleration - IEPE Power
    * Analog Input 0 - 20V
    * Induction proximity probes
  • Data Acquisition
  • * ADC Resolution: 16 bit
    * Dynamic Range 96dB max, 90dB typical
    * Harmonic Distortions: -80dB typical
    * Anti-aliasing filter: Analog & digital filters
    * Sampling Rate:
     effective rate 128 Hz to 51.2 kHz
    * Analysis Frequency Bandwidth:
      0.015 Hz – 100 Hz to 3.125 Hz – 20 kHz
    * Spectral lines: 100 to 6400
  • Communications

  • * Networks:
      RS485, Ethernet
      802.11, 900 MHz, Cellular
  • Power

  • *Voltage: 12 - 24 VDC
    * Current: 80 - 55 mA
    * Power: ~1 watt depending on radio