Working temperature range covers -20°C to +40°C, the temperature stability of the PID control is ±0.5°C. Splash-proof keypad with integral mains switch. Large, bright LED display. Reliable Microprocessor PID temperature control. Filling level indicator. Powerful immersion pumps, suitable for continuous operation. Permissible temperature within return line: +80°C max. Easy filling from the top with hinged protective lid. Low liquid level protection with visual and audible alarm signal. Stainless steel bath tanks. Removable venting grille for cleaning of the condenser. Front drain. No side vents. RS232 interface for PC connection. Ingress protection class acc. to IEC 529: IP21. Pressure indicator. Adjustable bypass for pump pressure.