• Measure rpm from 5 to 99,990 RPM with microprocessor quartz crystal accuracy of 0.05%
  • Large LED display updates 1/sec (RPM < 60)
  • Resolution: 0.1 RPM (5 to 1000 RPM), 1 RPM (1000 to 999 RPM), 10 RPM (10,000 to 99,990 RPM)
  • Unique design permits rpm measurements of a one hole gear or disk eliminating the need for special gears
  • Optional proximity and photo sensors


The Extech 461950 panel tachometer is a 1/8 DIN panel mounted instrument that measures rotational speeds from 5 to 99,990 RPM while offing a basic accuracy of ±0.05%. The Extech 461950 panel tachometer features a 4-digit LED display that updated every second. The Extech 461950 panel tachometer also features a unique design that allows you to measure the RPM for a one hole gear or disk, which eliminates the need for specially configured gears.

The Extech 461950 panel tachometer is compatible with either of two sensor pickup types: a proximity sensor designed for target distance of 0.1" (3mm)and covering a range to 36,000 RPM (600Hz); or a photoelectric sensor with a target distance of 0.4" (10mm) and a range to 15,000 RPM (250Hz). Both sensors are encapsulated and come with a 6' cable. They are available as accessories for the Extech 461950 panel tachometer.


Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

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