The TopTech series offers excellent featured circulators for a wide range of application. The models MB and MC have a LED temperature display - the ME models comes with a VFD Comfort Display. The PID temperature control, with disturbance variable offset, attains a temperature accuracy of ±0.01°C. An adjustable over temperature protection ensures safe operation. The new early warning system for low liquid level warns of a loss of fluid before a safety cut-off is affected. Models MC and ME have a variable electronically adjustable pump capacity. Further features are the 3-point temperature calibration and RS232 interface for online communication. The ME model also has an external Pt100 sensor connection for temperature measurement and control in external systems as well as an integrated programmer, with 10 steps and real-time clock, for full control of temperature processes.