Moisture Meters from Buck Research Instruments, LLC

Aircraft Hygrometer -- 1011C

Aircraft Hygrometer -- 1011C -- View Larger Image
Aircraft Hygrometer -- 1011C-Image

The 1011C Aircraft Hygrometer is a complete chilled mirror optical dew point system for monitoring atmospheric dew and frost points. It provides three stages of thermoelectric cooling, and can reach frost points as low as -60 to -90 °C, depending on mounting configuration and operating conditions. No auxiliary coolants are required.

Included in the 1011C system are a water excluding inlet probe and a pressure tap for monitoring static pressure. A cockpit digital display with resolution to 0.1 °C is provided, as well as analog and RS-232 outputs for recording. The 1011C is a complete reworking of the 1011B formerly manufactured by Buck Research Instruments under license from General Eastern Instruments.


Product Category
Moisture Meters
Variables Measured
Moisture Content; DewPoint; Pressure (optional feature)
Form Factor
Dew Point Range
-85 to 122 F (-65 to 50 C)
Dew Point Accuracy
0.36 +/-F (0.20 +/-C)
Operating Temp
-40 to 185 F (-40 to 85 C)
Electrical Outputs
Digital Outputs