Features: Explosionproof Aquarium Heater: The aquarium heater use explosionproof material which makes this submersible heater more resistant withstand damage and corrosion, featured with water shortage overheating automatically protections, effectively protect aquatic organisms from harm, bring healthy & warm environment for fish. Easy Use External Controller: The external press button controller makes it easy to power on or off and adjust the temperature without wetting your hands, safety and simple to operate. Selected Material: The heater use qualified ABS material, nontoxic, safety yet wear resistant, bring effectively rapid heating for your aquarium, fish tanks. Clear LED Display: The heater carry with the LED digital display shows the real-time water temperature clearly and accurately, sensitive and no effect even the heater underwater. Dual Temperature Probe: The aquarium heater carry with dual temperature sensing probes which sensitive and safe to detect abnormal temperatures, rapid heating and auto constant temperature after reach the setting. Specifications: Product Dimension: approx. 17x7.5x2.3cm/7x2.95x0.9in Style Option: US Standard(100W)/US Standard(200W)/US Standard(300W)/EU Standard(100W)/EU Standard(200W)/EU Standard(300W) Material: ABS Package Includes: 1 x Aquarium Heater note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.