LCD digital magnetic hotplate stirrer with a dia. 135 mm workplate, 20 L maximum stirring capacity and heating from room temperature to 340 C. The four models share one platform - brushless DC motor, 100-1500 rpm, 80 mm maximum magnetic bar, PT1000 external temperature sensor (+/-0.2 C), RS232 data connector and 100-120/200-240V, 50/60Hz power - and differ in workplate cover, power and timer: the LSM+H-Pro and LSMT-H-Pro use a stainless-steel cover with ceramic coating, the LSMA-H-Pro and LSMM-H-Pro an aluminum cover with ceramic coating. Per-model specifications are listed in the comparison table below.