321 is compact probe size digital Hygro-Thermometer, ideal for field use with high performance. 321S is fast response, high accuracy digital Hygro-Thermometer with Dew point & Wet bulb Temperature measurement
Features:
| 321 | 321S |
Mini size | * | * |
Fast Response Time | * | * |
High Accuracy | | * |
High Performance | * | * |
Max Hold and Data Hold Function | * | * |
Dual Display & Backlight | * | * |
Dew Point & Wet Bulb Temperature | | * |
Specifications:
Function | Range | Basic Accuracy | 321 | 321S |
Humidity | 0-100%RH | ±2% RH | | * |
±3.5% RH | * | |
Temperature | -30-100℃/ -22-199℉ | ±0.5℃/0.9℉ | | * |
-20-60℃/ -4-140℉ | ±2℃/4℉ | * | |
Dew Point Temp. | -30-100℃/ -22-199℉ | ±0.5℃/0.9℉ | | * |
Wet Bulb Temp. | 0-80℃/ 32-176℉ | ±0.5℃/0.9℉ | | * |
