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Digital photo-tachometer DT-2234

The RPM of motors and machine parts. Wide measuring range & high resolution.
The last value/min value will be automatically stored in memory and can be displayed by turn anytime. The housing has been carefully shaped to fit comfortably in either hand. Digital display gives exact RPM with on guessing or errors. It is a great tool to measure. In wood and metal working it can be used to accurately measure the speed of a lathe.

Display: Large 5 digit, 18mm LCD.
Test select: Automatic.
Range: 2.5 to 99,999 RPM
Resolution: 0.1 RPM (from 2.5 to 999.9 RPM) 1 RPM (over 1,000 RPM)
Accuracy: +/-( 0.05% +1 digit)
Distance: 50 to 500mm/ 2 to 20 inch
Memory: Last Value. Max Value. Min RPM
Size: 13x7x2.9cm


Digital photo/contact tachometer DT-2236

This tachometer has an integrated optical transmitter and receiver at the top of the unit and a mechanical contact assembly at the base of the unit. The 5-digit LCD automatically inverts when switched from optical to contact so that the display is always the right way up when viewed.

  • Photo tachometer - direct reading rpm
  • Contact tachometer - direct reading, ranges rpm, m/min, ft/min
  • Memory recall of last reading
  • Measurement range: 5 to 99999rpm (optical) ;0.5 to 19999rpm (contact)
  • Resolution: 0.1rpm
  • Accuracy: ±0.05% +1 digit (dependent on ambient light conditions)
  • Sensing range: 50 to 150mm
  • Overall dimensions: 215 x 65 x 38mm (H x W x D)
  • Battery: 4 x AA Cells (not supplied)


Various models with different technical specifications are availalbe, as per customer request.