For round flasks. - The built-in controller allows a continuous adjustment of power outlet. - The heating bowl is resistant to corrosion and made of st. steel: it protects from the leaking fluid if a vessel breaks. - Plastic-coated metal housing: chemically resistant and stable. - Thermally insulated and earthed: the thermal isolation between the heating element and the outer case avoids the release of heat. The predrilled threaded hole on rear allows to fix a KM-SK clamp. - Built-in heating zone switch. - With 1.5 m power supply cable and residual current detection (RCD). For round flasks. - The built-in controller allows a continuous adjustment of power outlet. - The heating bowl is resistant to corrosion and made of st. steel: it protects from the leaking fluid if a vessel breaks. - Plastic-coated metal housing: chemically resistant and stable. - Thermally insulated and earthed: the thermal isolation between the heating element and the outer case avoids the release of heat. The predrilled threaded hole on rear allows to fix a KM-SK clamp. - Built-in heating zone switch. - With 1.5 m power supply cable and residual current detection (RCD).