The D1 Plus Control (120V) is a standalone digital temperature control engineered for Mr.Steam CU Commercial Steam Bath Generators equipped with the D1 Plus temperature control system. This control-only replacement is designed for situations where the existing D1 Plus Control needs to be swapped out without replacing the mounting plate, offering a more economical repair path when the plate itself remains in good condition. Operating on a 120V control voltage feed, it manages room temperature and high-limit temperature functions to maintain safe, consistent steam room conditions. Precise digital temperature control is essential in commercial steam room operation, where inconsistent readings can affect bather comfort and place unnecessary strain on the generator's heating cycle. Compact and lightweight at just 1 lb., this control restores full digital temperature management without the added cost or installation time of replacing the entire mounting assembly, making it a practical choice for straightforward control replacements.