Cryogenic Frost Point Hygrometer
A sonde that accurately and precisely measures water vapor at elevations from the earth’s surface to the mid-stratosphere.
The Cryogenic Frost Point Hygrometer (CFH) is a sonde that accurately and precisely measures water vapor at elevations from the earth’s surface to the mid-stratosphere. Measure the amount of water vapor inside ice clouds or perform dehydration studies in tropical areas. The CFH is also great for validating satellite measurements and humidity sensors on radiosondes.
Included Items
- EN-SCI CFH Sonde
- Polystyrene Foam Flight Box
- Lithium Metal Batteries
- Inlet Tubes
- Technical Support
Warranty
EN-SCI warrants this product to be free of defects in material and workmanship for up to one year from the shipped date or first flight, whichever comes first. For support assistance please email us at info@en-sci.com.
Product Information
| Parameter | Specification |
|---|---|
| Measured Parameters | Ambient Frost Point |
| Derived Parameters | Relative Humidity, Mixing Ration |
| Technique | Temperature-controlled chilled mirror |
| Uncertainty Measurement | 4% in tropical lower troposphere, 10% in middle stratosphere, 9% in tropopause |
| Altitude Range | 0 - 25 km (all climates) |
| Weight | < 400 g (without coolant) |
| Instrument Dimensions | 7.6 cm x 7.6 cm x 13.3 cm |
| Dimensions (in Flight Box) | ~12" W x 12" D x 12" H (~39cm x 39cm x 39cm) |
