A Rotary Pulse Indicator for high-speed measurements is available.
There are 4 products of Pulse Input.
Rotary Pulse Indicator
K3HB-R
Digital Rotary Pulse Meter Capable of 50 kHz Measurements
Timer Interval Indicator
K3HB-P
Digital Time Interval Meter for Measuring Passing Speed, Time, or Cycle between Two Points.
Up/Down Counting Pulse Indicator
K3HB-C
Measure High-speed Up/down Pulses with this Up/down Pulse Meter.
Frequency/Rate Meter
K3MA-F
Highly Visible LCD Display with 2-color (Red and Green) LEDs