| Specifications | UT331 | ||
| Temperature | Range | -20°C~70°C (-4°F~158°F) | √ |
| Accuracy | -20°C~0°C | ±1℃ | |
| 0°C~40°C | ±0.5℃ | ||
| 40°C~70℃ | ±1℃ | ||
| Resolution | 0.1℃/0.1℉ | √ | |
| Humidity | Range | 0%RH~100%RH | √ |
| Accuracy | 10%RH~90%RH | ±3.5%RH | |
| ＜10%RH or ＞90%RH | ±5%RH | ||
| Resolution | 0.1%RH | √ | |
| Features | |||
| ℃/℉ selection | √ | ||
| Response time | Around 10 seconds | √ | |
| Humidity offset settings | √ | ||
| Temperature offset settings | √ | ||
| Dew point offset settings | √ | ||
| Auto power off | √ | ||
| Power saving mode | |||
| Data hold | √ | ||
| MAX/MIN | √ | ||
| Data storage | √ | ||
| Data recall | √ | ||
| USB interface | √ | ||
| Auto record time setup | √ | ||
| LCD backlight | √ | ||
| General Characterisitics | |||
| Power | 1.5V battery (R03) x 4 | ||
| Display | 26.5mm x 35.5 mm | ||
| Product color | Red and grey | ||
| Product net weight | 130g | ||
| Product size | 185mm x 54.8m x 33.8mm | ||
| Standard accessories | Batteries, carrying bag, PC software CD, USB interface cable | ||
| Standard individual packing | Gift box, English manual | ||
| Standard quantity per carton | 20pcs | ||
| Standard carton measurement | 430mm x 290mm x 290mm | ||
| Standard carton gross weight | 6.3kg | ||
