Feature: 1. Fast Heating: The interior of this submersible heater is made of titanium alloy heating plate, fast heating, safe and stable. High definition LED display, the fault is clear at a glance. 2. Constant Temperature: PID temperature control algorithm, intelligent frequency conversion, power adjustment by chip, high thermal energy, low power consumption. 3. One Key Temperature Control: Fish tank heater adopts separated outside tank controller, one key to control the temperature, dual temperature sensing probes, real time monitoring. 4. 2 Units: The submersible thermostat heater can switch between °C and F° to display the temperature, long press the controller for 5 seconds to switch automatically. 5. Durable Housing: The aquarium heating rod has a rugged ABS housing that is removable and easy to clean for long term maintenance. It is suitable for both seawater and freshwater. Specification: Item Type: Aquarium Heater Material: ABS Use: Fish Tank Intelligent Heating Rod Plug Specification, Voltage: EU Plug 220V Temperature Range: 15～34℃. Package List: 1 x Aquarium Heater1 x Suction Cup Fixed Clips 1 x Instructions