Hourmeters are used in vehicles and machines to record the effective running time. MOTOMETER hourmeters are available in different versions. Concentric minute displays with a 5-digit hour gauge are available, as are pure roller registers with one decimal place in a round or rectangular design, along with versions that have a LCD-display. The running times of the machines when the motor is switched on are recorded accurately and reliably. The voltage is between 12 and 80 V.