Indoor Humidity Sensor

The ULTIMETER indoor humidity sensor is a precision thick film polymer device. The sensor is used in a low frequency oscillator circuit, which changes frequency as the relative humidity changes. The output of the oscillator is fed into the microprocessor. Includes 20 ft. cable.

The indoor humidity sensor can be located away from the display unit, wherever humidity monitoring is most required: in the bedroom of someone with respiratory problems, in a greenhouse or solarium, humidor or wine cellar, or in a room where valuable antiques or musical instruments are kept. Most other weather stations lack this flexibility because the indoor sensor is only located inside the keyboard/display unit.
It is same precision sensor used in out outdoor humidity unit, so it's accurate from 0% R.H. to 100% R.H. Some systems economize by using a less capable sensor indoors.
Like our outdoor humidity sensor, it will not be harmed by prolonged high humidity and can even be totally immersed in water without damage!

"Keep a weather eye on Peet Bros."