1、TITANIUM ALLOY HEATING MATERIAL: Submersible fish tank heater is made of titanium alloy heating material, fast heating speed, PID constant temperature, energy saving and power off from the water. 2、12V SAFE AND LOW VOLTAGE: Fish tank heating rod adopts 12V safety low voltage to prevent electric fish, when the heater is working, it will disconnect the power immediately after leaving the water to stop working. 3、SEPARATE CONTROLLER: Fish tank heater adopts separated controller, outside the tank to control the temperature. Switching display of °C and °F is available, and the control display is in full English, more convenient to view. 4、DUAL TEMPERATURE SENSING PROBES: Constant temp aquarium heater uses dual temperature sensors to monitor the tank in real time, 1h heating, 3h constant temperature, auto thermostat and real time power. 5、FREELY ADJUSTED: Aquarium heater uses intelligent frequency conversion technology, the power size is freely adjusted by the chip, always maintain the appropriate power constant temperature. 6、ABS SHELL: Submersible aquarium heater is made of ABS shell, safe and non toxic, no harm to water quality and aquatic plants and animals, freshwater and seawater can be used. Item Type: Aquarium Heater Material: ABS Use: Fish Tank Digital Display External Control Heating Rod Temperature Control Range: 15-34℃ 1 x Aquarium Heater 2 x Suction Cup 1 x Fixed Lanyard 1 x Adhesive Hook 1 x Instruction Book