08/19/2022
Our HTAB176 Dial!
Shows Relative Humidity and Temperature in both Fahrenheit and Centigrade at a glance In Germany, Lufft has been making fine meteorological instruments for over 100 years. Abbeon has been offering their high quality instruments here in the U.S. for over fifty years. The Lufft instruments shown here have white faceplates with black lettering.
The humidity is sensed by a Durotherm element that is a synthetic hygroscopic fiber that expands and contracts in response to the moisture in the air. The thermometer is actuated by a bimetallic spring which transmit changes in temperature through expansion and contraction. The Abbeon Certified Hygrometer Model HTAB-176 is certified to be accurate within ± 3% RH (30 ... 100%), + 1 scale division. The dial indicates the complete range of 0 to 100% relative humidity.
Abbeon Cal Inc 800 922 0977
Fischer dial instruments, made in germany, Lufft