Generic 10W Adjustable Betta Heater for Small Aquariums, USB-Powered Submersible Fish Tank Heater with Digital Thermostat, Ideal for Tanks 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.

• Incredibly Compact Design: This aquarium heater boasts an ultra-compact size of just 1.97" (5cm) in length, making it ideal for nano and betta tanks while saving valuable space.
• Safe USB Power Source: Powered by a 5V/2A USB connection, this heater ensures the safety of your fish by minimizing electric shock risks. Use any compatible power adapter or power bank to operate it.
• Precise Temperature Control: Utilizing advanced inverter technology and integrated chips, this heater maintains a stable temperature with a precision of 1°F, outperforming traditional knob-based heaters.
• Automatic Overheat Shutoff: Prioritizing safety, this heater features an automatic shutoff mechanism that activates when water temperature exceeds 97°F, protecting your fish from overheating.
• Versatile Heating Applications: This adaptable heater is perfect for both freshwater and saltwater environments, suitable for aquariums, turtles, pet fountains, and plant seedlings, offering a compact heating solution.