No. The SIS machines should not be compared to commonly available microcurrent stimulators, either electronically or therapeutically.
WARNING: GENERALLY AVAILABLE MICROCURRENT STIMULATORS, AND OTHER ELECTRO-STIMULATORS THAT HAVE ELECTRONIC SPECIFICATIONS THAT INCLUDE THE MILLIAMPERE (mA) RANGE OF OUTPUT CURRENT, ARE NOT CAPABLE OF THE ELECTRONIC REQUIREMENTS OF ULTRA-LOW AMPERAGE (LOW INTENSITY DIRECT CURRENT) FOR SILVER IONTOPHORESIS USING SILVER-NYLON CLOTH AS ELECTRO-CHEMICAL ANODE AND CATHODE, AND SHOULD NOT BE USED WITH THE SIS ELECTRODES IN CASE OF UNPREDICTABLE TISSUE DAMAGE, BURNS AND OTHER ADVERSE BIOLOGICAL EFFECTS.
The SIS machines are direct current (DC) devices that are necessary for silver iontophoresis; they have no output stimulation frequency. Most currently available microcurrent stimulators are not DC devices: they are frequency emitting, pulsed waveform devices.
For silver iontophoresis using silver-nylon cloth electrodes as the +ve and -ve electro-chemical anode and cathode for the release of silver cations (Ag+s), extremely stable ultra-low amperage (low intensity/amperage) DC Output Current with nano-ampere accuracy is required, which is far beyond the capabilities of generally available microcurrent stimulators.
Additionally, the M250, M250MA and W250 model SIS machines are sophisticated real-time monitoring devices of the SIS silver-nylon cloth electrode↔skin contact, which is absolutely necessary for silver iontophoresis to occur at these very low electric currents.