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AT / ATH Tachometers

The AT Series tachometer is a rugged instrument with solid-state circuitry for indication of engine RPM.

It is equipped with a ring nut for mounting into a standard 3-3/8 in. (86 mm) dash mounting hole. A full 240° sweep of the pointer gives an accurate indication on a large easy–to–read scale, and the dial can be illuminated for night reading. The ATH Series model is also equipped with hourmeter to record the elapsed running time of an engine.

  • Improved quality
  • New, easy one-button calibration procedure
  • Every model will accept all signal sources: alternator, magnetic pickup or ignition
  • Easy ring clamp for installation
  • LED backlight
Specifications Downloads
Specifications Drawer: 
  • Power Input: 10-32 VDC (100 mA max at 32 VDC, does not include backlight)
  • Backlight: LED, Red (75 mA max at 32 VDC)
  • Accuracy:
    • Tachometer: +2% full scale
    • Hourmeter: +/- 0.02%
  • Temperature Range: -40 to 185° F (-40 to 85° C)
  • Dial (Face Plate): 240° sweep with white numerals
  • Bezel: 304 stainless steel
  • Scale: 0-3000 RPM
  • Case Material: Nylon, 12% glass filled
  • Hourmeter Range: 99999.9 hours in 0.1 increments.
  • Electromagnetic Compatibility: 2004/108/EC
  • IP66 front and IP32 back (vented case)
  • RoHS Compliant

Additional product documentation can be found on our product support website or by clicking the Help Center button above.