These hygrometers are certified to be accurate within ± 3% RH. The dial indicates the complete range of 0 to 100% relative humidity. Each instrument has been tested at three different positions of the dial at temperatures ranging from 32 to 230F. The bimetallic thermometer on the model AB599100 is accurate to 1% of scale and has a range of -10 to190F. An internal RH sensor (man made fiber) element expands as humidity increases and contracts as humidity decreases. This expansion and contraction is mechanically linked through precision bearings and gears to the humidity pointer. No batteries or external power supplies are needed. The unit is completely self contained. A calibration screw is accessible through a slot in the case for periodic calibration to a known humidi
Let us find the exact product you need. We have access to suppliers full lines for products beyond what you see here.
Call 1-800-358-5525.
See details