Water temperature and water level automatic control device of solar water heater

The utility model discloses a water temperature and water level automatic control device of a solar water heater. The water temperature and water level automatic control device comprises a single-chip microcomputer, a temperature sensor, a key input device, a nixie tube temperature display device, a water outlet valve, a water feeding valve and a water level detection sensor. The temperature sensor, the key input device, the nixie tube temperature display device and the water outlet valve are respectively connected with the single-chip microcomputer to constitute a water temperature detection and control mechanism, the water feeding valve and the water level detection sensor are respectively connected with the single-chip microcomputer to constitute a water level detection and control mechanism, the water level detection sensor is placed in a water storage tank of the solar water heater, and the temperature sensor is matched with the water outlet valve of the solar water heater. The device is simple in struct