Ningbo Doto Electric Co., Ltd.
Ningbo Doto Electric Co., Ltd.
The Doto HM1 hour meter is a compact electromagnetic running-time meter for panels that need a clear hours readout. The 6-digit drum counter with red decimals shows accumulated operating hours at a glance, while the quartz time base keeps the reading stable over a long service life. Designed for 220-240V AC 50/60Hz supplies, it is widely fitted to generators, compressors, machine tools and switchgear cabinets for maintenance scheduling and warranty tracking. The square bezel mounts through a standard cutout and is secured with the retaining clip, requiring no special tools for installation.
| Model | HM1 electromagnetic hour meter |
|---|---|
| Timing range | 0-999999.9 h |
| Display | 6-digit drum counter with red decimals |
| Accuracy | Quartz time base ±0.01 |
| Operating voltage | AC220-240V, 50Hz / 60Hz |
| Panel size | 72 x 45 mm |
| Mounting cutout | 45 x 45 mm |
| Operating temperature | -10°C to +50°C |
| Reset | No |
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Professional manufacturer of AC contactors, circuit breakers, capacitors, hour meters and counters. Factory-direct, CE & ROHS certified, exporting worldwide.
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