Easy to use， Safe，Precise.Fully submersible heaters work in any position (horizontal or vertical) to provide optimum aquarium water temperature.Safe and reliable in both fresh and salt water aquariums!Temperature range between 65??F and 93??F.Sensitive and reliable thermostat maintains uniform temperatureIncludes two suction cups for mountingAutomatic shut off when the temperature is reached.Shatterproof glassPlastic cover protector (removable)Specification:Voltage: 220-240V 50/60HzDiameter: 0.875 inchLength of power cord: 2.9 feetPackage include:1 x Heater