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Chart Recorders & Data Loggers
Dickson's portable Data Loggers and Circular Chart Recorders set the standard for monitoring instrumentation.
For over 80 years, Dickson has manufactured instruments for monitoring temperature, humidity and pressure.

The Dickson THDX Chart Recorder is a uniquely versatile instrument. We have combined Temperature, Humidity, and Dew Point Monitoring with an 8" circular chart and large digital display. Alarms, locking door and keypad are also standard features of the THDX. Accessories include extension cables for the instrument's probe for remote monitoring applications.
  • C/F and RH/Dew Point switchable
  • Min/Max feature allows display of minimum and maximum readings
  • User calibration
  • Large digital display shows two variables at once
  • User selectable recording times and temperature ranges


Data Sheet

The TH6 chart recorders will accommodate a wide range of temperature/humidity applications. All TH6 models feature a 6" circular chart smartly housed in a compact bench mount, wall mount, and DIN compatible case.
  • Records temperature and humidity on a 6" diameter chart
  • Monitors conditions up to +185F with remote probe (see TH603)
  • Options include remote probe, audible alarm and relay contacts
  • AC power with battery back-up plus power status indicator
  • User set-up of recording times, ranges, and temperature scale
  • (C/F) switchable
Data Sheet

The TH8 chart recorder is extremely easy to use in many critical temperature and humidity environments such as computer rooms, employee comfort, storage areas, and laboratories. Durable all metal construction, unequalled portability, ease of use, and its ability to run for up to a year on a single AA battery have made the TH8 a standard in the industry.
  • Rugged Metal Case
  • Operates up to one full year on a single "AA" battery
  • Totally self-contained and easy-to-use
  • Records temperature and humidity on one chart
  • Large, easy-to-read 8" circular chart
  • Plexiglas, shatter resistant, window in door

Data Sheet


This temperature/humidity chart recorder provides an accurate record at a reasonable price. It provides a continuous 24-hour record of temperature and humidity on a 4" circular chart. The recorder features highly accurate quartz chart movement, a precise bi-metal, strip transducer for temperature sensing and a cellulose, acetate-butyrate humidity sensor. A single "AA" battery provides power for an entire year. This temperature/humidity recorder features a corrosive resistant, high impact, plastic case. Additional features include: On/Off switch, external battery access, pen cap storage, and external product I.D. tag.
Data Sheet

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