Dryout-free constant-water-level constant-temperature water bath

The utility model discloses a dryout-free constant-water-level constant-temperature water bath. Refitting is carried out on the basis of the constant-temperature water baths sold on the market. An electronic liquid level adjusting water supplementing system is mainly added, is formed by a liquid level control adjuster, a water level alarm, a liquid level detector, a solenoid valve and the like and is externally connected with tap water or a high-level water tank (water pool), thus achieving random water level adjustment, constant water level control and no water, ultralow water level and ultrahigh water level automatic alarm and protection. The water bath is safe and reliable, is convenient and flexible to operate, is adjustable in water level, can avoid dryout and burnout, achieves 24-hour unmanned continuous constant-temperature heating experiment and is mainly applied to constant-temperature heating experiments in laboratories with tap water or high-level water tanks (water pools).