SYOSI Adjustable 10W Betta Heater, Small Submersible Fish Tank Heater with Digital Display Thermostat, USB Powered, for Aquariums up to 1 Gallon

Mini Aquarium Heater: This adjustable small submersible fish tank heater is designed for aquariums with a capacity of up to 1 gallon. It comes with a digital display thermostat for precise temperature control.

"Thumb Size" - Only 1.97 inches (5 cm) in length, making it suitable for small aquariums.

Temperature Range: It can maintain temperatures within the range of 64-93 degrees Fahrenheit, suitable for aquariums with a capacity of up to 1 gallon.

USB Powered: It operates on 5V/2A USB power, allowing for convenient power source connections.

Temperature Accuracy: The heater provides temperature accuracy to within 1 degree Fahrenheit, ensuring stable temperature control.

Overheat Protection: It automatically stops working when the water temperature exceeds 97 degrees Fahrenheit, ensuring safety.

This small aquarium heater is ideal for smaller aquariums, providing precise temperature control and overheat protection to ensure the well-being of your aquatic creatures.

• Super Mini Size: This aquarium heater is incredibly small, measuring only 1.97" (5cm) in length. Perfect for nano tanks and betta tanks. Its innovative size solves the issue of space in traditional heaters.
• 5V/2A USB Power Supply: This heater is powered by a safe 5V/2A USB source, eliminating the risk of electric shock to your beloved fish. Simply use a 5V/2A power adapter or power bank (not included) to supply power to the heater.
• Accurate Temperature: Thanks to intelligent inverter technology and built-in chips, this thermostat maintains a constant temperature with an accuracy of 1°F, much more precise than traditional knob-controlled heaters.
• Overheating Protection: Safety is a top priority. This fish tank heater automatically stops working when the water temperature exceeds 97°F, preventing your fish from "cooking."
• Multiple Uses: Suitable for both fresh and marine water, this versatile heater can be used in aquariums, for turtles, pet fountains, and plant seedlings. It's a compact solution for various heating needs.