These units simply plug into
the serial port (or USB in the case of the USB Units) of your PC (no power required) allowing you to measure
temperature or humidity. The TH-03
uses precision resistive sensors, the TC-08
uses thermocouples, the
PT-104
uses PT100 or PT1000 sensors, whilst the RH-02
has built in sensors for humidity and temperature.
They offer a very simple, accurate and
cost effective way to monitor and record temperature and humidity on your PC
using the supplied PicoLog software. For users who wish to write their own
software, drivers and
examples are included.