The Abbeon HTAB 176 Hygrometer Thermometer Humidity Temperature Indicator by Lufft 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. Includes conformity information. CALIBRATED UNIT (to NIST Standard) WITH CALIBRATION CERTIFICATE is available at extra cost - click "NIST Calibrated" on the left menu. 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 0 - 210°F, and -20 - 100° C utilizing the Lufft bimetallic movement. Bimetallic springs transmit changes in temperature through expansion and contraction. Highly accurate, this precision Certified Hygrometer Thermometer will provide years of trouble free service. 6" Polished Brass Case, 5" Dial. Normally Ships in 1-3 business days. MSRP: $195.00.

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