1Microcomputer control, full electronic digital circuit, high stability. 2Setting temperature is 20-35, LED display, easy to read. 3Beautiful appearance, with monitoring temperature control function, automatic constant temperature. 4Adopts relay, not produce electromagnetic field and other interference phenomenon to other living things. 5Internal temperature sensor, heating rod automatic power off when leaving water. 6Built-in overtemperature protection, when the water temperature is 3 higher than the setting temperature, force to stop heating, when the temperature is 3 below the setting temperature, the indicator light flashing. 7When the temperature difference perceived by the temperature sensor is more than 5 or the temperature is too high, display SE and force the heating to stop. Condition: 100% Item Type: Heating Rod Material: ABS Color: As Pictures ShownPlug: CN Plug Voltage: 230V Setting Temperature: 20-35 Remote Control Battery: 2 x AAA Dry Battery(Not Included) Optional Power: V-HT-RD(300W), V-HT-RD(500W), V-HT-RD(900W) v:* {behavior:url( default VML);} o:* {behavior:url( default VML);} x:* {behavior:url( default VML);} .shape {behavior:url( default VML);} Power Length(cm/inch) Diameter(cm/inch) Power Cord(cm/inch) Suitable Aquarium 300W 28/11.02 6/2.36 140/55.12 150-300L 500W 30/11.81 6/2.36 140/55.12 300-500L 900W 34/13.39 6/2.36 140/55.12 500-800L .w-e-text table td,.w-e-text table th,.wang-edit-text table td, .wang-edit-text table th{border: .5pt solid000;};.w-e-text table,.wang-edit-text table{border: 1px solid000important;}1 xHeating Rod1 xTemperature Sensor1 xRemote Control2 xSuction Cup