| Comet D3121 Specifications |
| Technical Parameters |
Value |
| Measured Value |
Temperature + Relative Humidity |
| Construction Type |
With T+RH Probe on Cable |
| Temperature Measuring Range |
-30 to 105 °C |
| Data Logging Function |
Yes |
| Operating temperature range |
-10 to +60°C |
| Temperature sensor |
RTD Ni1000/6180ppm |
| Accuracy of temperature measurement with built-in sensor |
±0.4°C |
| Accuracy of air humidity measurement |
±2.5%RH from 5 to 95% at 23°C, resolution 0.1% |
| Accuracy of dew point measurement |
1.5 °C at ambient T < 25°C and RH>30%,
range -60 to +80 °C |
| Power |
battery 9V |
| Battery life |
4 months typically |
| Real time clock |
year, leap year, month, day, hour, minute, second |
| PC interface |
USB |
| Sampling interval in data logging mode |
10s to 24hours (18 adjustable intervals) |
| Total memory capacity |
up to 16000 recorded values |
| Data logging modes |
noncyclic - data logging stops after filling the memory
cyclic - after filling memory oldest data is overwritten by new |
| Dimensions |
141 x 71 x 27 mm, probe length 135mm, probe diameter 18mm |
| IP protection |
IP20 |
| Weight including battery without probe |
approximately 150g |
| Warranty |
3 years |