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| Brand | Airmar |
|---|---|
| Origin | USA |
| Model | 33-627-02 |
| Measurement Range | 10–95% RH |
| Accuracy | ±5% RH |
| Resolution | 1% RH |
| IP Rating (when installed) | IPX4 |
| Compatible Systems | Airmar 110WX, 120WX, 150WX, 200WX, 220WX Weather Stations |
| Brand | Davis Instruments |
|---|---|
| Origin | USA |
| Model | 6420 |
| Sensor Type | Artificial Leaf Resistive Sensor |
| Excitation Voltage | 3 V (nominal, bipolar) |
| Time Constant | 2 s |
| Cable Length | 12 m |
| Cable Specification | 4-conductor, 26 AWG |
| Connector | Standard RJ-11 |
| Substrate Material | Fiberglass + Ceramic Board |
| Conductive Grid Material | Copper, Nickel, Gold |
| Mounting Bracket | Anodized Aluminum |
| Dimensions (L×W×H) | 102 mm × 58 mm × 58 mm |
| Weight | 0.4 kg |
| Output Range | 0–15 (dimensionless wetness index) |
| Accuracy | ±0.5 units |
| Resolution | 1 unit |
| Data Update Interval | 62.5–75 s |
| Compliance | Designed for outdoor agricultural and ecological monitoring per ASTM E2797-21 (Standard Practice for Measuring Leaf Wetness Duration) |
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