YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (25 Watts)

【Super Mini Size, 25Watt for 1-5 Gallons】 YukiHalu 25W aquarium heater is designed for 1-5 gallons mini fish tank. Compact design, take less space in the fish tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93°F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V. 【Automatic Constant Temperature with 1℉Accuracy】Thanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1℉. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. Compare to traditional heater, this new technology will cut down 49% electricity bill for you. 【Overheating Protection, Out of Water Protection】The power will be cut off and stop heating automatically if the heater out of water or overheating. Protect your fish. Never cook your fish. 【External Temperature Controller, Never Wet Your Hands】Use an external controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminating your tank. Strong suction cups, easy to install. 【Built-in Temperature Sensor, Power-off Memory Function】Dual built-in temperature sensor, the water temperature will be displayed on the external temperature controller in real time. No need to buy other aquarium temperature meter. The heater will remember the temperature setting, no need to reset the temperature after power off. 【Daily maintenance】The suction cups must be cleaned every month to prevent the heater from falling off and breaking because the suction force is weakened by stains. 【Check before installation】Check the glass tube first before installation, if the glass tube is cracked (not completely broken), do not use it

CAUTIONS
1, The device must be used under rated voltage 100-130V.
2, The heater must be fully submersed into the water. The external temperature controller must be kept away from the water as it is not waterproof.
3, When there is moss or other dirty on the heater surface and the LED screen, it needs to be cleaned up with soft brush in time.
4, Disconnect power socket and wait for 15 minutes before changing water or remove heater.
5, Place the heater in the way of water flow and don't bury it.

Products Highlight
1, Small size. It's perfect for a mini fish tank
2, Strong suction cups, easy to install
3, Easy to set temperature. External temperature controller
4, Easy to read. Dual built-in temperature sensor. Digital LED display
5, High accuracy up to 1℉ thanks to advanced Intelligent Frequency Conversion Technology
6, Overheating protection/Out of water protection
7, Suitable for saltwater and freshwater

Error codes
E1: out of water protection, stop heating automatically.
H1: Overheating protection, stop heating automatically.
other codes: replace a new kit.

Indicator lights
Green: Constant Temperature
Red: heating

Parameters
Voltage: 100~130V/50~60HZ
Power: 25W / 50W / 100W / 200W
Aquarium Volume:
* 25W: 1-5 Gallons
* 50W: 3-10 Gallons
* 100W: 8~20 Gallons
* 200W: 15-40 Gallons
Temperature Range: 18~34 °C / 64~93 ℉
Temperature Accuracy: 0.5 °C / 1 ℉
Power Cord length：4.2Ft
Controller: External Controller（Not waterproof）
Packaging: 1×heater with external controller, 1×user manual, 1×suction cup- 25W/50W or 2×suction cups –above 100W