K3MA-F Description Highly Visible LCD Display with 2-color (Red and Green) LEDs

K3HB-C Description Measure High-speed Up/down Pulses with this Up/down Pulse Meter.

K3HB-P Description Digital Time Interval Meter for Measuring Passing Speed, Time, or Cycle between Two Points.

K3HB-R Description Digital Rotary Pulse Meter Capable of 50 kHz Measurements