| Model | Parameters |
| Single-sided calendar sub-clock CJ-SRS2.3-3DH | Working voltage: AC220V, 50Hz |
| Independent timing accuracy: ±0.1 sec/day | |
| Environmental requirements: Working temperature: -10~+50℃ | |
| Automatic photosensitive, brightness adjustment function. | |
| Mean time between failures (MFBF): ≥ 100,000 hours | |
| Power: ≤50W | |
| Using standard NTP protocol | |
| With "Sub-clock synchronization time accuracy " detection device |