Every Maker Should have...[Pt.39]...a Solder-Iron Thermometer

A surprisingly accurate, cheap and user-friendly Chinese solder-iron thermometer. Also resold by HAKKO :-)
Support Roger on Patreon: / kainkalabs
Very useful if you have a solder-station/solder-iron of unknown quality to check the true temperature at the solder-tip.
For the FG-100 there are also temperature-probes for solder-pots and for hot-air stations available.
Furthermore a teardown of the FG-100 & comparison with the ELV LTT1 and a normal thermocouple thermometer.
Link to the ELV LTT1:
www.elv.de/L%C3%B6tkolbentemp...

[@Vmaxfodder]

Thank you for the review

[@raunoaljas7109]

Hakkos instructions are to solder the tip before measurement tho
ua-cam.com/video/1OmH7QxlXxQ/v-deo.html
Which kind of makes sense to get a good thermal connection to the thermocouple

[@jfpsimon]

Hi Roger, thanks for your videos. How do you think they do the cold junction compensation in the FG-100? Is it possible that the specialized MCU includes an ambiant temperature sensor? Or maybe they assume a constant T° in software?

[@KainkaLabs]

They certainly did not assume a constant ambient temperature in the FG-100 becaue one can see the displayed temperature accurately displays room temperature (without a solder tip touchung the sensor)
They probably use a thermistor somewhere on the PCB (or the temperature sensor inside the microcontroller).

[@jfpsimon]

thank you for your reply!

[@dromedar63]

Hello, nice Video, is it possible to combine these Sensors with the DT012C Digital Thermometer?

[@KainkaLabs]

To what end?

[@dromedar63]

Hi Roger. I have no FG-100 but a DT012C. Give these Sensors correct readings with the DT012C?

[@g.g.hochstetler2286]

Fakko