Portamonitor® Bearing Indicator

This is your ideal, quick to use, pocket-size tool for checking the lubrication and bearing wear and tear for rotating machinery, especially on pumps, motors and gearboxes.

Portable Acoustic Emissions Bearing Checking Instrument
P/N: 2634016-PMO
Ex-stock | Same-Day Dispatch*

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You can easily test bearing wear and tear in rotating machinery with Acoustic Portamonitor® condition monitoring tool. Submit an enquiry and our expert team will send you details and pricing within 24 hours.

Benefits of Portamonitor® vs other bearing checkers:

  • Easy to use
  • Accurate
  • Reliable
  • Instant results (as well as standard condition monitoring readout)
  • Guaranteed by Coltraco’s Customer Care Commitment of lifetime support and never beaten on price promise

Results show Condition Monitoring Trend + Instant 

  1. Decibel Level – this shows the trend by showing the condition of the bearings, giving you the ability to track degradation over time).
  2. Distress® Level – unlike other condition monitors, Portamonitor gives you an immediate result. This shows the current bearing state identifying: ‘OK’ ‘SUSPECT’ ‘POOR’ (numerical equivalent i.e. 5-10 = ‘OK’) so you can instantly assess if further investigations are needed.

Portamonitor® is incredibly easy to use:

  1. Turn unit on
  2. Apply gel to the sensor and surface you are testing
  3. Press search button and place on bearing for 10 seconds
  4. Results will then show

Portamonitor   Portamonitor use


Portamonitor contains all the kit necessary to carry out testing inculding the main unit, cable for charging, operating instructions and pocket carrying case.

Portamonitor op instr

Portamonitor kit


  • Height:62 mm (2.44 inches
  • Width:98 mm (3.86 inches)
  • Depth:34 mm (1.34 inches)
  • Weight:225 grams (7.94 ounces)


Resonant piezoelectric at 100kHz

Sensor Measurement

Distress® :
  • Fault indicating parameter
  • 0 to 40
  • 1 dst resolution
dB level® :
  • Logarithmically scaled mean signal level
  • 0 to 80
  • 1 dB resolution

Power Supply

NiMH rechargeable battery via micro USB port - Typically over 1000 measurements between charges (battery life approx 12 hours)


LCD, 2 lines by 8 charactersReading in progress: Flashing LED indicator (in addition to LCD display message)

Operating Temperature

1 x PP3 9V battery (battery life 10 hours)


Main Unit: 1 Years Warranty Lifetime Customer Support

Package Contents

  • 1 Portamonitor unit
  • 1 USB Cable
  • 1 Protective Case
  • 1 Carrying Case
  • Operating Instructions

Recent News Related Info

To complement our Portascanner™ Watertight package, the miniature Portamonitor™ has been designed to test bearings and rotating machinery on board ships and Naval vessels. Trials are being conducted with a leading Navy shortly. The Portamonitor™ aids in the identification of mechanically deteriorated bearings and bearings with inadequate/contaminated lubricant. It does this by detecting high frequency (ultrasonic) stress waves associated with friction and other faults with machinery in poor condition (impacts etc.). It can be used to monitor bearings in motors, pumps, fans, gearboxes and other rotating machinery applications. It has two outputs – a decibel (dB) reading and a Distress® level which are both measured and displayed simultaneously by the Portamonitor™.In addition to our standard after sales customer care, you can upgrade to our Portacare® plan. This is our 3 – 5 year total care maintenance and calibration package in line with proper calibration of measuring and monitoring equipment as advised by BS (British Standard) BS EN ISO 17025 , NIST, Indian Standards etc. UKAS (United Kingdom Accreditation Service) is the sole body recognised by HM Government for assessing and accrediting the competence of calibration and testing laboratories. Their maximum calibration interval for sound intensity meters, like the Portalevel® is one year. UNIDO (United Nations Industry Development Organisation) and NIST (National Institute of Standards and Technology) also support regular calibration. UNIDO state that ‘… calibration is an essential activity in any measurement process.’NIST tells us ‘The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity.’
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