100% brand new and high quality Features: Not hurt your fishes! Large digital display, display the real-time temperature of fish tank water temperature. External temperature controller, each time you press which add 1 . After setting the temperature, the display will change back to the real-time temperature display. Easy mounting with the large suction cups attached, rod install vertically or horizontally. In winter, ensure the output of heat and keep the water temperature inside the tank steady. Totally submersible, waterproof double insulation, durable and safe design. Power indicator, ensures safe operation. Fish Tank Mini Heater only,other accessories demo in the picture is not included. Usage: 1. Install the heater to the glass surface inside the tank. 2. When the installation is complete, plug in power supply. 3. Set the temperature you need through the temperature adjustment button. Each time the temperature is increased by one digit, the temperature is automatically recycled at 17-35 degrees. 4. After setting the required temperature, the number will flicker for 5 seconds, and then automatically confirm that the display will jump back to the current actual water temperature, and then rise to the temperature you set. Specification: Material: ABS Size: app.6.5x3x11cm/2.56x1.18x4.33in Color: Black Optional Power: 25W, 50W, 75W, 100W Plug Style: EU Quantity: 1 Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Fish Tank Mini Heater