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Extech RH520
Humidity and Temperature Chart Recorder
- Discontinued, See: RH520A

  • Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
  • Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus calculates Dew Point
  • Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
  • Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
  • LCD indicates percentage of memory remaining
  • Replaceable probe does not require recalibration
  • Detachable probe extends up to 1 meter for measurements in closed environments
  • Audible and visual alarm with Hi/Low set points
  • Download, analyze, and store data using Windows®95/98/2000/NT/ME/XP Compatible Software (included)
  • Output socket used with optional external alarm module
  • Scroll the cursor to display selected data recorded
  • Desk or wall mount
  • Complete with built-in stand, detachable probe with 3ft (1m) cable, RS232 cable, software, 110VACadaptor and 3 AA batteries
  • Monitor and record Laboratory or clean Room temperature and humidity history
  • Record process conditions
  • Generate warning when conditions are outside required limits
  • Monitor controlled environment areas such as freezers, storage areas and other critical areas
  • Store humidity and temperature historical data for report generation
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Extech RH520 Shown
Product Information
Datasheet 238 KB
Manual 451 KB
PDF Help
Ordering Information
Model Description Buy Online Price
RH520 Extech RH520 Humidity and Temperature Chart Recorder - Discontinued Discontinued
See: RH520A
Included Accessories
  • (1) Built-in stand
  • (1) Detachable probe with 3ft (1M) cable
  • (1) RS232 cable
  • (1) 110VAC adaptor
  • (3) AA batteries

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.