I got this tester to check the temperature of various soldering irons. Having tried testing tip temperature with a normal thermocouple with very random results, I thought it would be quite interesting to see what was special about the thermocouple used specifically to test iron tips.
Although labelled Hakko, I don't know if it's a genuine Hakko brand unit.
Although labelled Hakko, I don't know if it's a genuine Hakko brand unit.