The thermocontrol+ e is an adjustable heater with digital control via WLAN. You can set the precise temperature from 18 to 32 °C via smartphone, tablet or PC/MAC. For aquariums of 200-300 liter.
With the Eheim thermocontrol-e heating element your fish get the right temperature even more precisely - in every aquarium. For aquariums from 60-100 liter.