Extech Humidity/Temperature Paperless Chart Recorder


The Paperless Chart Recorder offers the simultaneous display of humidity and temperature. The recorder has remote probe sensors, 49K of data storage capacity, real-time monitoring and an optional relay module provides a complete monitoring system.

Included with each Recorder
>> Built-in Standf
>> Detachable Probe with 3ft Cable
>> RS-232 Serial Cable
>> RS-232 to USB Adapter
>> PC Software (LabView-Based)
>> 100-240 VAC50/60Hz Adapter
>> 3 AA Batteries and Stand

NOTE: Large Quantity Discounts Are Available!

RH & Temperature Paperless Recorder Features

  • Unique Paperless Monitoring
  • Cost effective recording method eliminates the need for replacement charts and pens
  • Programmable Sample Rates
  • Memory status feature alerts user of remaining memory
  • User programmable high and low alarm limits trigger a built-in audible alarm
  • Probe with remote cable ideal for reaching into ducts and humidity chambers
  • User can set vertical and horizontal graphical resolution
  • Real-time Monitoring

RH & Temperature Paperless Recorder Specifications

Display Large, backlit graphical LCD
Temperature Measurement Range -20°F to 140°F (-28°C to 60°C)
Humidity Measurement Range 10 to 95% RH
Dew Point Temperature -20°F to 140°F (-28°C to 60°C)
Accuracy Humidity: ±3.0% RH
Temperature: 1.8°F (1°C)
Data Storage Capacity 49,152 Samples/Readings
Sampling Interval Selectable recording rate: 0.1 to 199.9 minutes
Graph Scaling User selectable in 10°F, 5°C and 10% increments
Low Battery Indication 5-segment battery indicator
Power Supply Three (3) "AA" Batteries and AC adapter (included)
Battery Life 4 weeks typical, using alkaline batteries
Operating Temperature Control Module & Display: 0°F to 120°F (0°C to 50°C)
Sensor: -20°F to 140°F (-28°C to 60°C)
Operating Humidity Control Module and Display: 90% RH max.
Sensor: 95% RH max.
Software Compatibility Windows 95,98,2000,NT,ME and XP
Dimensions 5.0" x 7.7" x 0.9" (127 x 196 x 23mm)
Weight 12.6oz (357g)

Description Part Number Qty 10+
Extech Humidity/Temperature Chart Recorder RH520A call
Optional Accessories
Extech Replaceable Humidity/Temperature Probe RH522 call
Extech 220V AC Adaptor 147230 call
Extech AC Alarm Relay Module 9 foot cable (3m) SL123 call
Extech DC Alarm Relay Module 9 foot cable SL124 call
USB Serial Adapter CABLE-USB232 call