Feature: 1. Ni-Cr heating wire fast heat conduction, stable, energy saving, durable, not affected by magnetism. 2. Automatic intelligent constant temperature. 20℃-34℃ cycle temperature control, convenient and quick. 3. Using 23mm outer diameter thickened quartz tube, heating speed is faster, heat resistance, explosion‑proof more stable. 4. Selected silicon carbide layer body, stable heat conduction. HD LED control display, real-time monitoring of the state of the fish tank. 5. High safety factor, providing over-temperature alarm, low-temperature alarm, sensor failure display, and over-temperature protection. Specification: Item type: Fish Tank Heating Rod Material: ABS+Quartz Glass TubeColor: As Pictures Shown Plug Model: EU Plug 220-240v Size: Approx. 29x5.5x4cm/11.4x2.2x1.6in Temperature Control Range: 20℃-34℃ How to Use: 1.When the power is off, put the heating rod body into the water, and the whole body is completely immersed in the water, plug in the power supply, and set the temperature. 2.Place the position, put the heating rod as far as possible in the position of water circulation, so that the heat of the heating element can circulate into the water in the tank. 3. It is forbidden to insert the heating rod body into the sand or mud at the bottom of the cylinder to prevent unnecessary trouble caused by burning the rod body. 4.Because the water-discharging and power-off induction device is located in the upper half of the heating rod, it is forbidden to install the rod body upside down, with the head down and the heating element up to avoid water shortage, the heating element will be exposed in the water, and the heating will cause damage. 5. The temperature setting button in the middle of the power cord must be exposed out of the water, and be careful not to damage it due to water entering.. Package List: 1 x Fish Tank Heating Rod2 x Suction Cup1 x Manual Note: 1. The probe needs 10‑30 minutes to adapt to the current water temperature. The sensor probe detects the temperature around the rod body, which may deviate from the overall fish tank water temperature.2.The position of the rod body can be changed and placed in a position with large water flow, so that the heat of the rod body can be evenly distributed in the water.3. All PTC materials and stainless steel heating rods on the market may show electricity when tested with an electric pen, but only about 20V. In this case, it is induced current, not leakage.4. Clean the surface of the glass and the bottom of the suction cup, and reinstall it. When installing, make the suction cup close to the glass and suck on the glass flatly.5. If there is no display on the screen, check whether the power socket is off and whether the operating environment is at standard voltage.6. If there is a display on the screen, but it is not heating, please unplug the power and set the temperature again. The red light is on and it is heating. If it is not heating, it means that the heating element is damaged.