Johnson Controls HE-67P2-0N00P TRUERH Duct Probe Humidity Element with Thin-Film Platinum Temperature Sensor, -2% RH… Price: $411.40 (as of 29/07/2021 07:57 PST- Details)

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TRUERH circuitry and calibration techniques for which patent protection is pending
All-Polymer humidity sensor patented sensing element provides accurate and reliable humidity sensing