Vermes
Advanced Member level 4
It's a temperature indicator for PT 803 soldering station. The only missing thing in this station is the indicator of the tip temperature. This is how the idea came.
This device cooperates with every type of thermocouple. Fluctuations are about 3 degrees Celsius. Holes were made using a drill and several of files to reach desirable look. The display was finished with sandpaper 400 and painted black, then lacquered.
Pictures below show construction and mounting of temperature indicator of the soldering station tip.
Link to original thread (useful attachments) – Wskaźnik temperatury do stacji PT 803