Measure rotation speed with or without contact

These instruments are simple to use and offer numerous measurement possibilities with or without contact.
Measurement by photo-reflection for no-contact measurement: a reflective strip is positioned on the part to be tested. The optical sensor helps to prevent external disturbances and the active, modulated infrared beam guarantees correct measurements.
For traditional measurement with contact, a mechanical adapter (cylinder, cone or calibrated wheel) converts the rotation speed into pulses which are then measured by the tachometer.
Third possibility: an external input allowing a large number of sensors delivering voltage signals to be connected to the tachometer.

The digital display is a genuine control panel showing a 42-segment bargraph accompanied by useful information: confirmation of signal reception, functions selected, alarm thresholds, etc.
The rotary switch gives direct access to 7 different measurement units (RPM, Hz, etc.) and each key on the keyboard corresponds to a function (MIN MAX, Smoothing, alarms, etc.).