Magnetic Hot plate stirrer/mantle

Hi,

I'm after some advise I need a magentic hot plate stirrer but wanted to know what's the pros/cons of a mantle rather than a plate.

Also I would like one with rpm and temperature digital display.

I need to be hold the temperature. What I have read even though the hot plate can reach 350oC the actual oil won't

I need something that can reach a minimum of 140oC.

I was wandering if anyone can advise on a good solution as I can't afford to spend hundreds. Happy to get a used one, donated one. Lol.

Any advice would be greatly appreciated.

Thanks