Compact USB Aquarium Heater with Digital Display

A compact, submersible aquarium heater designed for small tanks and nano setups. Features a USB-powered digital display for precise temperature monitoring and easy adjustments. Precise temperature control from 18°C to 34°C with 0.1°C accuracy USB-powered digital display for real-time temperature monitoring Compact design optimized for mini and micro tanks up to 4 liters Durable, corrosion-resistant construction suitable for both fresh and saltwater environments Efficient heat transfer with a pro