The Lufft HTAB 169 Hygrometer Thermometer Humidity Temperature Indicator is a certified accurate analog hygro thermo.

The hygrometer has been tested at three positions of the dial at temperatures from 32° to 230°F, certified to be accurate within ±3% RH. Calibration and certification are performed by Abbeon Cal Inc. under ISO-9001 control. The hygrometer utilizes the Lufft Durotherm element, a synthetic hygroscopic fiber that expands and contracts in response to the moisture in the air.
 
The thermometer is accurate to ±1% of scale and has a range of -10 - 190°F, utilizing the Lufft bimetallic movement. Bimetallic springs transmit changes in temperature through expansion and contraction.
 
Highly accurate, this precision Hygrometer Thermometer will provide years of trouble free service.

Features:
- 6" Polished Brass Case
- 5" Black Dial with White Numerals. Plastic lens available on request.
- Measuring Ranges: Hygro 0-100%, Thermo -10° to 190°F
- Accuracy: Hygro ±3% RH. Thermo ±1% of scale
- Dial Graduations: Hygro: 1% RH. Thermo: 2° F

For over 100 years Lufft has produced high quality instruments. The Lufft 1 Year Limited Warranty covers the HTAB 169 hygrometer thermometer humidity temperature indicator.

Availability: Usually ships in 1-3 business days.
 
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