Extech RH520A Humidity and Temperature Chart Recorder
Model RH520A
The Best Value for a Graphical Datalogger on the Market
This paperless chart recorder provides simultaneous digital and graphical display of relative humidity and temperature. The display also shows dew point, date, time, and min./max. measurements. Stored readings can be recalled on the display or downloaded to a PC to obtain a permanent record. The RH520A can be mounted to a wall, or the control panel swivels to act as a desk stand. Users can set audible and visual alarms with high and low limits for humidity and temperature. The RH520A comes complete with detachable sensor probe with one-meter cable, RS-232 cable with USB adapter, LabView-based software, 100-240 VAC 50/60 Hz adapter, and three AA batteries.
Features
  • Simultaneous Numerical and Graphical Display of Humidity and Temperature Readings, Plus Time and Date
  • Measures Humidity (10% to 95% RH) and Temperature (-20°F to 140°F), Plus Calculates Dew Point
  • Basic Accuracy of 3% RH, 1.8°F/1°C
  • Large Dual Graphical 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 Setpoints
  • Output Socket Used with Optional External Alarm Module
  • Scroll Cursor to Display Selected Data Recorded
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Applications
  • 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, and Other Critical Areas
  • Store Humidity and Temperature Historical Data for Report Generation