Temperature measurement: -20℃~-70℃ (±0.3℃)
Dew point temperature: -78.2℃~-70℃ (±0.8℃)
Wet bulb temperature: -21.6℃~-70℃ (±0.3℃)
Humidity: 0~99.9percentRH (10percent~90percentRH ±2percentRH; The rest ±2.5percentRH)
Resolution: Temperature: 0.1℃/ Humidity: 0.1percentRH
Automatic/manual data storage: 999 groups (available for inspection)
High and low temperature limit backlight alarm
Maximum/minimum measurement/data retention
Test value offset Settings: -6~6
Equipped with upper computer software (real-time data view and can be exported stored data)
USB power supply: Insert USB to switch to USB power supply
| Model number | UT331+ | UT332+ |
| Test the temperature | -20℃~70℃（±0.5℃） |
|
| Dew point humidity | -78.2℃~70℃（±1℃） |
|
| Wet bulb temperature | -21.6℃~70℃（±0.5℃） |
|
| Humidity | 0~99percentRH (10percent~90percentRH ±3percentRH; The rest ±3.5percentRH) |
|
| Resolution | 温度：0.1℃,Humidity0.1%RH | |
| Number of storage groups | Group 299 |
|
| Temperature measurement | 可切换温度/露点温度/Wet bulb temperature | |
| Manual storage | √ | |
| Automatic storage | Automatic interval storage can be turned on/off (default); The storage interval ranges from 0s to 60 minutes | |
| Data viewing | You can view the stored data | |
| Unit setting | ℃/℉ can be switched | |
| Alarm Settings | Alarm function can be turned on and off (default); Backlight alarm (upper limit alarm red light blinking at 500ms interval; Lower limit alarm blue lights blinking at intervals of 500ms) | |
| Measurement of maximum and minimum values | √ | |
| Data retention | √ | |
| Software export data | PC software can view real-time data and export data | |
| Automatic shutdown | 可开启/关闭Automatic shutdown功能（默认开启）;Automatic shutdown时间5min~60min可调 | |
| Real time | 可设置系统Real time | |
| Offset setting | 可设置温度、露点温度、Wet bulb temperature、Humidity偏移值（偏移范围：-6~6） | |
| Backlight | Can be enabled/disabled (disabled by default) | |
| USB power supply | 插入USB可切换USB power supply,USB电压：5V
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