MS7-H550-Pro-LD is a stirring hot plate with the programmable stirring operation, digital display, and the external temperature probe PT-1000. The maximum temperature of the heating surface is 550°C.Since 9/8/17, MS7-H550-Pro-LD is updated to gray color casing instead of the blue casing.SPECIFICATIONS: Features Easy-to-read LCD display for setting stirring speed and heating surface temperature Glass Ceramic heating surface (550 °C max temperature) with over-temperature protection Brushless DC motor for maintenance-free, long equipment life HOT TOP warning with the prominent display when the heating surface is above 50 °C (122 °F) External temperature probe (PT1000, 0 - 400 °C) and its supporting fixture are included for measuring liquid temperature One magnetic stirring bar is included for uniform stirring/mixing Input Power AC 110V, 50 / 60 Hz To use this hot plate with 220V power, a 1500W transformer will be needed. Please check the box in the personalization section to order. Total Power: 1050 W; Heating Power: 1000 W Heating Surface Size: 7" x 7" (176 mm x 176 mm) Material: Glass Ceramic Heating temperature: 550 °C max with over-temperature protection Temperature accuracy by PT-1000: 0.2°C Temperature display resolution: 0.1 °C External temperature probe (PT1000, 0 - 400 °C) and its supporting fixture are included for measuring liquid temperature Stirring & Mixing Stirring speed: 100 - 1500 rpm Stirring capacity: 20 L (water) Stirring Volume: Dia. 10 mm x 80 mm Height One magnetic stirring bar is included for uniform stirring/ mixing Note: No beaker is included with the purchase