• hygger titanium aquarium heater kits, with 1 digital thermostat controller + 2 suction cups + 1 thermometer.
• Specially designed for saltwater aquariums, with temp setting remember function.
• How to set the digital heater temp controller?
• When plug in, firstly press the button 'Up' to choose the temp unit pattern,℃ or ℉.
• Set the temp: press the button 'Set' for 2-3 seconds until the set temp led flickering, then press the

button 'Down' or button 'Up' to set the value to your desired temp, finally, press the 'Set' button again to lock the value.

• You can set the temp from 32℉to 104℉.
• When does the heater stop and restart heating?
• It will stop heating when the water temp reaches to the set temp, restart heating when the water temp is 1℉ less than the set temp.
• There is a indicator light on the controller, when the heater is working the light is red, when it stops heating the light is off.

Directions for use

• For better experience and safety, please carefully read and follow the user manual.
• Please keep the heater fully submerged in water.
• Place the thermometer away from the heater and keep water in circulation.
• Place the heater horizontally near the water intake or on the way of water flow.
• Please wait the heater tube to cool down before moving it or changing the water.
• Don’t bury the heater in sand or mud.
• Please don't plug in before the heater is well installed.
• Don't suggest for acrylic or plastic tank.
• Please don’t use the heater alone without the digital temp controller.
• Once the controller occurs fault, please stop using it and contact the seller.

Submersible heater size chart

• Voltage: AC110-120V
• Wattage & fish tank size: 50W (5-10 gallon), 100W (10-25gallon), 200W (20-45 gallon)

When the weather gets cold and room temp is lower than 50℉, please choose a larger wattage heater than normal recommended.