Torrey Pines EchoTherm HS70--2 Programmable Corrosion Resistant Digital Stirring Hot Plate, 230V

Where other stirring hot plates would be quickly destroyed by vapors or spills, these are designed to be purged using an inert gas through a fitting on the rear of the chassis. Purging provides a positive pressure inside the unit to prevent corrosive gas from attacking the electronics or stirring mechanism. Stirring hot plates feature a fully programmable memory of ten programs with ten steps each, temperature ramping, RS-232 interface, membrane keypad, and a full-function LCD. A built-in timer can be set up to 99 hours and is readable to 1 second.