Yokogawa 240212AAAB7 Elapsed Time Meter 5 Digit

The Yokogawa 240212AAAB7 Elapsed Time Meter is a 120V AC, 60 Hz elapsed-time counter with a 5-digit mechanical display that tracks cumulative operating hours and features a manual reset. It mounts in about a 2-1/2 inch panel opening and consumes approximately 3.0 W, delivering a 99,999-hour counting range in a compact panel-mount form. Commonly installed in control panels, generators, compressors, motors, pumps, and HVAC equipment for runtime monitoring and preventive maintenance scheduling, it enables quick resets at maintenance intervals. As part of the Yokogawa 240 Series (discontinued), common replacements include Yokogawa 240612AAAD, 240732AAAE, and Omron H7EC Series Digital Hour Meters.