• Metric or Imperial 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

The SHIMPO Model 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. The PT-121 possesses a large backlit LCD screen that provides clear viewing in any environment. With a simple selection switch, users can obtain readings in either RPM, meters, and meters per minute in metric models or RPM, feet, and feet per minute in imperial models. During testing, the unit automatically saves maximum, minimum, and last recorded values and up to 96 logged data readings. The compact, lightweight PT-121 Tachometer comes standard with 3 AAA batteries, a protective carrying case, plus several contact adapters, and a contact wheel.