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PT-121 Contact Tachometer

Article No. 13274

PT-121 Contact Tachometers

The PT-121 Contact Tachometer is a simple to use, ergonomic, rugged test instrument for rotational speed applications. This velocity analyzing and measuring device is ideal for rotational machine inspection and process speed analysis. During testing, the unit automatically saves maximum, minimum, last recorded values and up to 96 logged data readings.

$110.00 excl. taxes & shipping cost


  • Imperial or Metric models with 3 unit selection by simple adjusting selector switch

  • Lightweight, ergonomic design allows comfortable long term usage

  • Large, backlit LCD for easy viewing in both bright and dim environments

  • Automatically records Maximum, Minimum, Last Value as well as up to 96 data points during testing

  • Quickly review after testing by pushing the MEM button

  • Includes contact wheel and cone adapters

Technical Attributes

  • Data
    Range:PT-121: 0.5-19,999 RPM, 0.16-6559.6 ft/min, 0.16-99,999 ft

    0.1 RPM (0.5-999.9 RPM), 1 RPM (above 1000 RPM)
    0.01 m/min (0.05-99.99 m/min), 0.1 m/min (100+ up m/min)
    0.02 m (0.05-99,999 m)
    0.03 ft/min (0.16-99.99 ft/min), 0.3 ft/min (100 ft/min and up)
    0.04 ft (0.16-99,999 ft)
    Display:5 digit, 0.7" (18 mm) LCD
    Accuracy:+/-0.05% + 1 digit
    Sampling Time:0.8 second (over 60 RPM)
    Memory:Automatically stores Maximum (UP), Minimum (dn), last value (LA) and up to
    96 readings for review. Maximum speed for reading storage is every 0.8 seconds.
    Dimensions:6.7 x 2.8 x 1.4 (170 x 70 x 35 mm)
    Power:3 x 1.5V AAA battery
    Enclosure:ABS plastic housing
    Product Weight:0.45 lb (0.20 kg)
    Package Weight:1.00 lb (0.45 kg)

Delivery Content

3 AAA batteries, Protective carrying case, Large & small cone adapter, funnel Adapter and Surface wheel, 3.87" (98.3 mm) cir.
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