Features:

• SMALL AND POWERFUL: This mini aquarium heater is about 2.36 "long, and is super small. It is specially designed for small fish tanks and does not occupy any space. Upgrade the chip to make the temperature sensing more sensitive and the temperature rise more accurate.
• INTELLIGENT MEMORY FUNCTION: After setting the target temperature, the power is suddenly turned off, and the target temperature remains unchanged after turning on the power again.
• OVERHEATING PROTECTION: Built-in temperature sensor, temperature range 64-93°F. If the water temperature exceeds 95°F, the error code "HI" appears, the heater stops working, and when it returns to below 95°F, the error code disappears and it starts working again.
• EXTERNAL CONTROLLER: External temperature controller, no need to get your hands wet, no need to buy other controllers, 52 inch long power cord, easy to install, easy to control.
• WIDELY USED: Suitable for freshwater and saltwater. Meet the growth temperature for turtle, Fighting fish,Guppy, Goldfish, Neon Tetra, Gourami, Peaceful Betta, Pterophyllum, Dwarf Gourami, Pterophyllum Scalare, Betta Smaragdina, Koi, Corydoras, Anabantoidei, Paradise Fish, Clownfish,swordtail...