- Precise Temperature Control: This USB aquarium heater features an external electronic temperature control system that allows you to easily set and maintain your desired temperature between 18-34°C (64.4-93.2°F). It automatically regulates the temperature, creating optimal conditions for your fish and aquatic pets. - Versatile Aquarium Accessory: Designed for a variety of aquatic environments, this compact heating rod is perfect for betta fish tanks, turtle habitats, and pet drinking water. Its small size makes it ideal for aquariums up to 2L, ensuring efficient heating in tight spaces. - Enhanced Safety Features: The heater includes an automatic shutdown function that activates if the temperature rises above 36°C (96.8°F), safeguarding your aquatic life. It also has a water-out power-off function, preventing damage if the heater is accidentally removed from the water. - User-Friendly Design: With a 136cm (53.5 inch) cable, this heater offers flexible placement options. Its USB connectivity allows for convenient power supply, and the durable black ABS construction ensures it blends seamlessly with your aquarium decor. - Ideal Use Scenarios: 1. Maintain a stable temperature in a betta fish tank to promote health and vitality. 2. Provide a warm environment for turtles in a habitat, supporting their well-being. 3. Keep pet drinking water at a comfortable temperature, encouraging hydration.