Extech RH520A Paperless Humidity/Temperature Chart Recorder

DISCONTINUED ITEM-Recommended Replacement: Extech RH520B Humidity/Temperature Chart Recorder

The Extech RH520A is the best value paperless temperature and humidity chart recorder in the market that's easy to set up and operate.

• 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
• Basic accuracy 3%RH, 1.8°F/1°C
• 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 calibration
• Detachable probe extends up to 1 meter for measurements in closed environments
• Audible and visual alarm with Hi/Low setpoints
• Output socket used with optional external module
• Scroll the cursor to display selected data recorded
• Complete with built-in stand, detachable probe with 3ft (1m) cable, RS-232 cable, USB adaptor, LabViewbased PC software, AC adaptor, and 3 AA batteries
• Optional NIST certification available (RH-520A-NIST)

• Monitor and record Laboratory or clean room temperature and humidity history
• Record process conditions
• Generate warning when conditions are outside required limits
• Monitor controlled environments such as freezers, storage areas, and other critical areas
• Store humidity and temperature historical data for report generation

• Extech RH520A Data Sheet.pdf
• Extech RH520A User’s Manual.pdf