Digital display: Pure transparent screen, high-definition digital display screen, different visual experience. High and low temperature warning: Independently set the high and low temperature thresholds, and automatically alarm when the threshold is exceeded. 3 in one: It can measure aquarium water temperature/ambient temperature/humidity, the refresh rate is 12s. Convenient and powered: The body and the water temperature probe are separated, which is more convenient and easy to disassemble. The cover design makes it easy to replace the High precision: The high-precision probe directly measures the water temperature with a small error.