SILICAR Mini Aquarium Heater, Submersible Fish Tank Heater with Built-in Thermometer, LED Display, External Temperature Controller, 10W/20W/30W Turtle Tank Heater for 0.5-1 Gallon Price: $15.99$21.99 (as of 27/10/2023 14:06 PST- Details)

【Precise Constant Temperature】The built-in intelligent temperature control chip keeps the temperature difference within ±1℉, It is very important for your pet needs to maintain a stable temperature. The heater’s working frequency will be changed according to temperature variation, It can work under low power and save electricity.
【External Controller】The SILICAR mini heater has an external control device, which makes setting and adjusting the water temperature much easier and safer. The temperature range can be set: 64~93℉, and the setting accuracy is ±0.5℉. Its built-in temperature sensor and the LED digital display show real-time water temperature clearly, it also has a power-off memory function, after the power is restored, it will keep the last set heating temperature.
【Fish Safety is Paramount】Never cook your fish! The fish tank heater has an leave water and an overheat shut-off feature. (*If the heating rod is out of the water, it will stop heating, display ‘E1’, the yellow light will be on, when it is put into the water again, it will return to normal working state. If the temperature exceeds 95°F, stop heating, display ‘H1’, and resume heating when it drops to 93°F.)

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