1、[Intelligent Heating] Aquarium heater using titanium alloy heating material, fast heating speed, with PID temperature control algorithm, energy saving, and power off when leaving from the water. 2、[Constant Temperature] The use of intelligent frequency conversion technology, power size is freely adjusted by the chip, soft temperature control, always maintain a suitable constant temperature. 3、[Safe Work] Submersible aquarium heater with 12V safety low voltage to prevent shock fish, when the heater works away from the water will immediately disconnect the power supply and stop working. 4、[LED Digital Controller] Submersible fish tank heater uses separated high definition LED outside the tank to control the temperature, the fault is clear at a glance, convenient and safe. 5、[Dual Probe] This fish tank heating rod has dual temperature sensing probes to monitor the tank in real time, providing 1 hour heating and 3 hours constant temperature work. 6、[Safe And Harmless] The fish tank heater is made of ABS shell, which is safe and non toxic and harmless to water quality and water plants and animals. Durable for both freshwater and saltwater. 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 Hanging Buckle 1 x Adhesive Hook 1 x Instruction Manual