... inner, Themostatic, farinfrared heating ISO13485/14001/9001 HH-S1 Laboratory Themostatic Digital Water Bath1. Stainless steel inner, Themostatic, farinfrared ... Certified, SGS Audited Factory Specifications of HH-S1 Laboratory Themostatic Digital Water BathPower SupplyAC 220V/110V 50Hz/60HzTemperature ... quality stainless steel material, good reliability. HH-S1 Laboratory Themostatic Digital Water Bath