The HSYS-1 mechanical hour meter uses a rectangular face with a 1/10-hour marking and two front mounting holes. This 10–80 V DC engine hour counter provides a non-resettable operating time counter for equipment maintenance records.
| Model | HSYS-1 |
|---|---|
| Supply voltage | 10–80 V DC |
| Display | Mechanical number wheels |
| Time range | 0–99,999.9 hours |
| Reset | Non-resettable |
| Panel dimensions | 54 × 32 mm |
| Mounting cutout | 44.5 × 24 mm |
| Signal input |