Aquarium Heater, Mini Submersible Aquarium Heater with Precise Temperature Control for 4L Aquariums

Temperature Control: The temperature setting range is 18°C ​​to 34°C (64°F to 93°F). When the water temperature falls below the set temperature, the aquarium heater will automatically begin heating until the water temperature reaches the set temperature, maintaining a constant water temperature.

Intelligent Control: Externally controlled electronic temperature adjustment using intelligent frequency conversion technology. Three-digit display for precise temperature control, with a setting accuracy of 0.5°C to 1°F.

Digital Displays: The digital display on the heater will show the current water temperature, while the controller's digital display will show both the current water temperature and the set temperature.

When you want to check the water temperature, you can see it on the heater or the controller screen. Wide application: Suitable for freshwater tanks under 4 liters, saltwater tanks, fighting tanks, micro-aquariums, turtle tanks, horned frog tanks, tropical fish tanks, and other mini aquariums requiring heating.