Measuring converters and relays for pulse rate, rotational speed and frequency evaluate the signals of a pulse sensor for generating signals and switching commands (Rotational Speed Monitors). The shock-resistant fibreglass-reinforced plastic housing is fire-resistant and weather-proof.

The devices can be snapped on to a standard mounting rail or secured with screws to a mounting plate. For more information on pulse sensors and sensors with an extremely high frequency range look at ctalogues ALSEN.