Data Logging Humidity & temperature Chart Recorder

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RH520A Data Logging Humidity & Temperature Chart Recorder

Model No. Product Name Price Qty
ARH-520 Data Logging Humidity & Temperature Chart Recorder
ACAL-HT Calibration Service + Certificate
ARH-522 Replacement Humidity/Temperature Probe
ALR-6-3 3 x 1.5V AAA Alkaline Batteries


This paperless chart recorder has a 49,000 readings data logger. The probe can be clipped to the unit or located remotely having a 1m connection cable. It is ideal to monitor and record temperature and humidity conditions and history in controlled environments, laboratories, clean rooms, storage and other critical areas.

  • -28° to 60°C x 0.1°, 10 to 95%RH x 1%
  • Calculates & displays dew point & wet bulb
  • USB & RS-232 interface for set up & data transfer to PC or laptop
  • Set up allows the user to select logging rate, start time and alarm limits
  • User selectable sampling times – min 6 secs, max 3 hours
  • Logs up to 24,500 temperature & 24,500 humidity readings
  • 2 programmable alarm thresholds (high/low)
  • Audible and visual indication if alarm limits exceeded
  • 120 x 75mm backlit LCD display with adjustable graphical resolution
  • Display indicates time, date, current readings, memory remaining and battery status
  • Easy to scroll through recorded data
  • Swivel keypad allows free standing, keyways for wall mounting
  • LabVIEW™ - based software with graphical display of data and option to export data as “csv” files for analysis
  • Supplied with detachable probe with 1m cable, RS232 cable, RS-232 to USB adaptor, software, AC/DC mains power adaptor and batteries

Product Video

Product Manual

Download the Product Manual

Product Software

Download the Product Software

Technical Specification
  Temperature Humidity
Range -28° to 60°C 10 to 95% RH
Resolution 0.1°C 1%RH
Accuracy ±1°C ±3%RH
Power 3 x 1.5V AA alkaline batteries (ALR-6-3) or AC/DC power adaptor
Dimensions 127 x 196 x 23mm
Weight 357g
Calibration Options
Traceable Calibration +£80.00 (issued at 2 temp & 2 RH points) 20°C & 30°C / 35% & 75%RH @ 20°C
Additional Points +£5.00 from -10°C to 50°C or +£15.00 from 30%RH to 95%RH

Product options

Calibration Service + Certificate