The Lufft 933 Hygrometer Thermometer, Comfortmeter indicates relative humidity and temperature, with color noted comfort level. It may stand on a table or desk, or may be wall hung.
 

The hygrometer is accurate to within ±4% RH, and utilizes the Lufft Ion Hygrometer movement.
 
The thermometer is accurate to ±1% of scale and has a range of 20 - 110°F, utilizing the Lufft bimetallic movement. Bimetallic springs transmit changes in temperature through expansion and contraction.
 
This precision Hygrometer Thermometer Comfortmeter will provide years of trouble free service.
 
Supplied with folding easel stand, and wall hanger.

Features:
- Polished Brass Case.
- 3 1/8" Color Coded Dial
- Measuring Ranges: Hygro 0-100%, Thermo 20° to 110°F
- Accuracy: Hygro ±4% RH. Thermo ±1% of scale
- Dial Graduations: Hygro: 2% RH. Thermo: 2° F

For over 100 years Lufft has produced high quality instruments. The Lufft 1 Year Limited Warranty covers the 933 hygrometer thermometer comfortmeter.

Availability: Discontinued.