NEY 2QT/H Ultrasonik Ultrasonic Cleaner Heating Up Time Lapse

A 30-sec time lapse demo showing a NEY 2QT/H ultrasonic cleaner heating up.
It took about 15 minutes to heat up from about 78deg F to about 142deg F. The temp was still rising when I turned it off. I started with tap water which was about 70deg in the first video then I made the time lapse video right after.
If you want to use the heat feature, I recommend using warm or hot water to begin with then you won't have to wait for it to heat up, then the built in heater only has to maintain the heat.
There is no temperature control option so I can only assume it has an internal high temp cut-off likely a bi-metal switch.