The Eheim Jager 150 watt heater uses TruTemp technology so you can fine-tune the temperature. It is a submersible aquarium heater made from shatter-resistant lab glass.
Output: 150 watt
Temperature control from 65 F to 93 F
TruTemp technology to fine-tune the temperature
Easy calibration to within 2 F
Dry run protection with auto shutoff when not submerged
UL-listed
On/off indicator lamp shows heating status
5.5 ft power cord
Let the heater cool before you take it out of the water and unplug it before servicing.