| Dimensions (with tubes) | 220mm x 64mm x 64mm (Version 1) / 224mm x 65mm x 62mm (Version 2) |
| Weight | 240g (Version 1) / 225g (Version 2) |
| Operating Environment | 0°C to +40°C, ≤95%rh non-condensing. Keep dry. |
| Display Type | HH:MM:SS, each digit is a reclaimed IN8-2 nixie tube. 2 neon bulbs for both colon separators. |
| LED Tube-Lighting | 7 presets with 32,768-colour custom setting and cycling mode |
| Time Accuracy | Calibrated to < 0.0003% (3ppm) with digital temperature compensation. < 8sec/month @ 25°C |
| Temperature Accuracy | 0.1°C Resolution, ±3°C Accuracy (typ <1.5°C) |
| Time + Settings Backup | Supercapacitor: 5 days min, 5-7 days typical. Settings saved permanently. |
| Power Adaptor | Input: 100-240VAC 50/60Hz. Output: 5.1V at 1A (RCM Compliant). |
| Supply Voltage | 4.8V - 5.3V via USB-C (Rev C) or Micro-USB (Rev A/B). Power supply current rating should be ≥1.0A |
| Supply Current (5.0V) | Disabled: 35mA (0.18W), Min: 100mA (0.5W), Max: 250mA (1.25W), With LEDs +30mA (+0.15W) |
| USB Details | VID: 0x04D8, PID: 0xEEAD |