can i safely use covidien padas on this machine

RPI may be able to assist. 

Yes you can-ish, it will work but it's always better to go OEM. Our Endo department had a bunch of Covidien left over when they bought different units and continued to use the C pads, I would get W/O about nessy issue but it always seemed to not have issue when I looked at units. Spoke with tech service was told that they (C pads) would work but its always better to have OEM. So we switched and have had as many issues with Nessy.