The JBJ True Temp Titanium Heating System is the most complete heating system to date with the most advanced features that set it apart as the leading heater for professional hobbyists. The advanced microprocessor constantly reads and displays the correct temperature to a tenth of a degree with a large LED display. Easy push buttons make setting your desired temperature simple and easy. Titanium—the perfect submersible element for fresh or saltwater aquaria. Virtually indestructible with the benefits of fast heat transfer without any corrosion. Integrated thermal shut off and out of water safety mechanism. An integrated smart memory chip will restore the previous temperature set point and calibration to the last stored setting once the power returns after a failure. Others features include Magnetic Heater Holders, and thick protective safety guards.