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A2105 Gas Engine Tachometer

Made in UK
a2105 spark plug tachometer
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The A2105 Digital Hand-Held Tachometer measures RPM of 2 & 4 Stroke Gas / Petrol Engines with a Non-Contact Antenna Sensor or Clip-On Remote Cable Sensor.

The A2105 is ideal for testing most types of single and multi-cylinder petrol & gas engines with electric and electronic ignition systems, designed for hand-held testing and hands free bench testing of engines, chain saws, disc cutters, horticultural and Forestry machinery, pumps, compressors and similar engine driven equipment.


  • Supplied with a Non-Contact Antenna Sensor & Clip-On Cable Sensor
  • Measures RPM on 2 & 4 Stroke Gas / Petrol Engines
  • Works with Single & Multicylinder Gas Engines
  • Reversible display
  • Real-Time or Peak RPM Display
  • Includes Certificate of calibration

Complete Kit

The A2105 comes supplied in a custom carrying case with AAA Batteries, Instruction Manual, Calibration certificate, Non-Contact Antenna Sensor & Clip-On Cable Sensor


Speed range60 to 18,000rpm
Resolution10 rpm
Accuracy0.05% ± 1 digit
Update0.8 sec (normal mode)
0.1 sec (capture mode)
ControlsOn, Invert, Capture, Ratio
Auto OffAuto shutdown if inactive for 5 minutes
Signal IndicatorYes in display
On target ind.Yes
Remote Sensing DistanceUp to 3" / 75mm
Battery Life6 hours of continuous use
Power4 x AAA batteries-supplied
Carry CaseSupplied


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Item Description Price
Hand-held Gas / Petrol Engine Tachometer
Petrol Stub Antenna for A2105 & A2107 Tachometers
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.