About This

• Stable & Efficient Heating: Specialized nickel-chromium wires with magnesium oxide filling heat your 5-10 gallon tank efficiently within the 59-95 °F (15-35 ℃) range. Fast warming with precise auto-shutoff at your exact setting keeps fish perfectly comfortable
• Precision Temperature Control: Dual sensitive temperature sensors inside the submersible aquarium heater deliver ±1 °F (±0.6 °C) accuracy – a cozy aquatic environment guaranteed. The safety shutoff at 96 °F (36 ℃) prevents overheating that could harm your fish
• Enhanced Security: Robust construction handles daily submersion! Explosion-proof quartz glass tube inside ABS housing creates double protection. Smart water detection triggers auto-shutoff if the submersible fish tank heater is exposed – no dry-run damage
• Ingenious External Controller: Bright LED digital display shows real-time power, water temperature, and operation status clearly. One-button temperature setting lets you make adjustments instantly while monitoring your betta heater’s performance
• Ultimate Convenience: Smart memory function saves the small aquarium heater’s settings through power outages. 5.9 ft (1.8 m) cable with 2 suction cups enables flexible placement in any tank setup, while the detachable design makes thorough cleaning effortless