• Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
  • Dual Type K external temperature probe input
  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
  • Built-in RS-232 interface (optional RS-232 cable) - uses Windows Hyperterminal to download data to a PC
  • Memory stores up to 99 data records

What's in the Box

  • 2 Type K bead wire temp probes (-58 to 482°F)
  • 4 AAA batteries


The Extech RH350 dual input hygro-thermometer psychrometer has two Type K external probe inputs for superheat and memory that can store up to 99 data points. It also has the capability of taking superheat differential measurements: T1-T2, Air-T1, and T1-Dew Point.

Other features of the Extech RH350 dual input hygro-thermometer psychrometer include a backlit LCD displaying three parameters: %RH and temperature with either dew point, wet bulb or Type K, built-in RS-232 interface, MAX / MIN with time stamp and AVG and data hold.

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$159.99 50 in stock

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