... ,CE Passed. 3.3years warranty. A & E Lab HK.Major Products: Hotplate,Stirrer,Stirrer Hotplate,Melting Point Device,SamplerConcentration,Block Heater ... . The range uses a microprocessor control, which gives the products a more accurate temperature and stirrer speed . All hotplates ... disengagement of the stir bar in the solution.All the products come with Microcrystal plate, which are more chemical, high ...