I have the Precision Uni-Probe Autoblend for personal use. $900. As far as I can tell it’s the lowest cost “real” electrolysis unit. It does constant current, has variable RF, and follows a programmed ramp of current and RF over the (adjustable) time. Both the DC and RF are fully adjustable, so it can be used as a galvanic or thermolysis machine.
Downsides? It’s strictly automated. The footswitch just initiates the timed cycle. So you can’t pulse the DC or RF. You have to trust the program. There are no meters so you can tell whether the current or RF is correct – you have to assume it’s right. It won’t do short duration “flash” thermolysis. Also, the machine comes with a “Uni-Probe” needle holder; to use the far wider selection of standard probes, you have to buy a holder, which will cost about $25.
Of course, a pro would miss things like memory and, I’m sure, a slew of other features I’m not even aware of. But it runs rings around a simple galvanic device, and seems like a satisfactory compromise.
Eric