AquaMiracle 200W Small Aquarium Heater Fish Heater, Super Compact Fish Tank Heater Turtle Tank Heater for 20-40 Gal Tanks, with Dual LED Display, Dry-Run/Overheating Protection & Memory Function

COMPACT SIZE – This aquarium heater is incredibly compact, measuring just over half the length of traditional fish heaters! Its innovative design solves the problem of bulky aquarium heaters, taking up less space while still providing powerful heating capabilities.

INVERTER TECHNOLOGY – This fish tank heater uses advanced inverter technology to heat water faster and more efficiently. It maintains a constant temperature and has a longer lifespan.

ACCURATE EXTERNAL THERMOSTAT – The built-in chips ensure precise temperature control with an accuracy of 1F. This is far more precise than the traditional knob-controlled heaters. The digital display on the external thermostat provides 2 readings – the current temperature and the desired temperature – making it incredibly user-friendly.

HIGH-QUALITY MATERIALS – This fish heater is constructed with durable nickel-chromium heating wire and highly heat-conductive sand. It is encased in a shatter-proof quartz glass tube, ensuring exceptional reliability and durability. Silicone protectors on both ends prevent any accidental damage to the fish tank glass.

INTELLIGENT SENSORS FOR PROTECTION - The turtle heater will automatically shut off if the water level is too low (DRY-RUN) or if the water temperature exceeds 97F (OVERHEAT). Additionally, the heater features a MEMORY FUNCTION that retains the last setting in case of a power outage. Say goodbye to the risk of "cooking" your fish!