Extech Humidity and Temperature Chart Recorder (RH520A)

In stock

This humidity and temperature chart recorder has a large LCD screen with graphical displays. The RH range of 10 to 95 percent and temp range of -20 to 140 F.

Extech Humidity and Temperature Chart Recorder (RH520A)


  • Simultaneous numerical and graphical display of humidity and temperature readings, plus time and date
  • Large dual graphical LCD displays with adjustable vertical and horizontal resolution indicate % of memory remaining
  • Internal memory records up to 49,000 data points can be transferred to a PC
  • Detachable probe extends to 3ft (1m)
  • Audible and visual alarm with Hi/low set points
  • Output socket used with optional external alarm module
  • Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, RS-232 to USB adaptor, LabView-based PC software, 100-240VAC 50/60Hz adaptor, and 3 AA batteries

This humidity and temperature chart recorder  is easy to set up and simple to operate. With easy to read graphical displays on a large LCD display screen. It simultaneously shows the temperature and the percent relative humidity for quick and easy referencing. With audible and visible alarms to alert you when the values exceed the high and low set points. This connects easily to your computer to upload and analyze all of your data with the included software.


  • Relative Humidity Range 10.0 to 95.0%
  • Temperature Range -20.0 to 140.0°F (-28.0 to 60.0°C)
  • Accuracy ±3% Relative Humidity; ±1.8°F/±1°C
  • Dimensions 5 x 7.7 x 0.9" (129x195x22mm)
  • Weight 12.6oz (357g)

Unit Ship Weight: 2 lbs

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