[ Durable Titanium Tube ] - this seawater resistant titanium aquarium heater is good for use in salt water and fresh water, service life can be 3 years or more. Very compact small, easy to hide in the tank. Don't suggest to use it in sump. The diameter of the titanium tube is19mm, you can buy suction cups suitable for this size when you need to get that replaced
[ Digital LED Display ] - the IC temp controller can show the water temp and set temp at the same time, and there is a indicator light to show the heating status. You can press the 'up' key to shift degree unit between Celsius and Fahrenheit
[ Wide Temperature Range ] - With the thermostat controller you can set the temp from 32to 104, control precision is 1, please set the right temp for your aquarium pets. The separate thermometer can detect a temperature from -68 to 140, the measurement accuracy is 0.2 plus or minus, very sensitive