All 9 EHEIM Heater models are 100% fully submersible and come with a new TruTemp dial that allows the user to recalibrate the heater within a +/- 0.5F degree accurancy for precise temperature readings.
Thermo safey control protects against running dry
Will automatically turn off when water level dips too low
TruTemp dial recalibrates the heater for precise temperature regulation
Made of shock resistant and shatter proof glass for fresh or marine water
On/Off indicator light for at-a-glance monitoring