1.Block Heater. 2.ISO,CE Passed. 3.3years warranty. A & E Lab HK.Major Products: Hotplate,Stirrer,Stirrer Hotplate, ... Melting Point Device,Sampler Concentration,Block Heater,Vortex Mixer,Cold ... Mixer Incubator, Rocker, Shaker, Roller Mixer, PCR,etc.Applications:Block heater is designed for widely use in Chemical, Biochemical, ...