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A2108 Hand-Held Optical Tachometer with Analog Output

Made in UK
A2108 Tachometer with Analog Output
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3 Models

A2108: Basic Model with Voltmeter Plugs
A2108/LSR: Adds laser light source, Remote On / Off, Tripod Mount
A2108/LSR/232: RS232 Output, laser light source

The A2108 Non-Contact Tachometer converts RPM into an analog (voltage) output signal allowing you to use any Digital Multimeter, Data Acquisition System or Voltage Recorder as an RPM display. Optional Contact adapter allows you to measure contact RPM or surface speed.

The voltage output on the A2108/LSR Analogue Output version provides 1mv/rev = 6vdc @ 6000 rpm.

The A2108/LSR version is switched On manually, using the continuous mode feature. option, provided continuous measurement is taking place the Probe will remain in the ON mode. An Auto OFF feature provides shutdown if no activity is logged for 1 minute.

The A2108/LSR/232 Laser Tachometer version provides direct serial data output to your PC, a serial cable & a CD with Logging software is supplied with this model. Note raw output is in hexadecimal format.

Complete Kit

The A2108 comes supplied in a custom carrying case with AAA Batteries, Instruction Manual, Calibration certificate & reflective tape (3pcs, 3"x1")


RangeRange 1: 100 - 6,000RPM
Range 2: 1,000 - 60,000 RPM
Resolution+/- 1.5mV
Accuracy+/- 0.5%
Light SourceA2108: Tungsten Filament
A2108/LSR Laser Class II 635nm
Optical RangeA2108: 50 - 1000 mm
A2108/LSR: Up to 2m (6ft)
Range SelectUp Arrow = I
Down Arrow = II
Carry CaseIncluded
Contact AdapterOptional
Voltage Output0.1 - 6 V DC, Both Ranges
On Target IndicatorGreen LED
Power4 x AAA batteries - supplied
Battery Life10 hours, continuous use
ConnectionsA2108: Coiled cable with 2 x 4mm plugs fitted
A2108/LSR: Binder connector + 1m cable
MountingTripod bushing included on A2108/LSR only
Update time(A2108-LSR)Time of one rev or 1millisecond
Zero offset(A2108-LSR)Max. 6mV Analogue version
Controls(A2108-LSR)2 x Press to Measure buttons
One Continuous Mode button
ControlsOn, Invert, Capture, Ratio(A2108-LSR-RS232)


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Item Description Price
Hand-Held Optical Tachometer with Analog Output
Replacement/Spare contact Adaptor 0.1 m circumference wheel
Reflective Tape, 1x7 Inch Strip - TAPE
Reflective Tab Sheet, 35 1/2" x 1/2" Squares - TAB
Qty 4 Reflective Tab Sheet, 35 1/2" x 1/2" Squares
Tripod for Tachometers and Stroboscopes
A2108 Analog Output Cable, 1 meter length, 5-Pin Binder Connector on one side, bare leads on the far end
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.