Check out the rest of the details for this hot plate... Voltage:110V Stirring Speed: 0-1600 rpm Heating Power: 500 Watts Temperature Range: room temp - 300 F Heating area: 170mm x 170mm
Heater: Bring the heat up slowly, until the desired temperature is reached. The top plate will retain heat for a time even after the heater control is turned off. Remove the sample after use to avoid it boiling over. Only non-ferrous metals or Borosilicate glass produces should be used with this unit. Failure to use these can result in the failure of the unit. Never try to heat plastic on this unit!
pH Probe: For pH measurements, stir the solution slowly and position the pH probe toward the side of the container, approximately 1" off of the bottom of the container.