Accurate temperature control by PID auto-tuning function, built-in timer (99hr59) Unifrom heat distribution on the heating plate Max. temperature 3800C (HSD 180) Max. temperature 3500C (HSD 330) Various sizes of the top plate and flexible choise Speed display by digital Electronic feedback control maintains a precise speed Max. speed 1500rpm Features By use of the temperature controller wşth function of the built-in digital PID auto-tuning, control temperature accurately and confirm set temperature and actual temperature at the same time Temperature controller with built-in timer function (99hr 59min) High-heat conductivity of top plate provides thermal uniformity over the heating surface Ceramic coated top plate provides excellent chemical-reistance, thermal-proof, and corrosion-resistance Possible to control the temperature of the sample with external sensor (option) Speed display by digital Electronic feedback control maintains a precise speed Smooth acceleration of stirring speed ensures no spillage. Specifications Model HSD120 HSD150 HSD180 HSD330 Type Hot plate & Magnetic stirrer Temperature Range Max.3800C Max 3500C Accuracy +10C Controller Digital PID auto-tuning Timer 99hr 59min Heater Power 350W 480W 680W 1400W Stirring Speed 100~150rpm 100~1300rpm Speed Display Digital Capacity (H2O) Up to 1L Up to 2L Up to 5L Up to 15L Speed Controllerer Feedback Control Top Plate Ceramic coated top plate Dimensions Plate area (mm) 120x120 150x150 180x180 300x300 Overal (WxDxH)(mm) 160x280x107 160x280x107 200x310x107 310x430x120 Electrical supply 220VAC 50/60 Hz or 110V 50/60Hz Weight 2.7kg 2.8kg 3.8kg 7kg Price.