Starting at $247.00
  • Usually ships in 3-5 business days


  • -58 to 302°F (-50 to 150°C) temp range
  • 10 to 100% RH range
  • Independent Displays
  • 61 Programmable Parameters
  • 4 SPST Relays
  • Up to 2 thermistors and 1 humidity sensor inputs
  • Password protected parameter settings
  • Selectable fail safe status of relay outputs
  • Two 3 digit displays

The Dwyer THC Temperature / Humidity Switch simultaneously measures and controls temperature and humidity. The unit offers a 3-digit red display for temperature indication and a 3-digit green display indicating humidity. The Series THC is equipped with four independent relays, two for temperature control and two relays for humidity control. The THC Temperature/Humidity Switch accepts up to two temperature probe inputs (sold separately) and a humidity sensor. A humidity sensor with 0 to 1 V, 3 V (THC-P sold separately), or 4 to 20 mA output can be used with the Series THC.