HIMARK thermostatic mixer consists of two handles, one temperature control handle and one water diverter handle. The temperature control handle will only adjust the temperature of the water and the water diverter handle will turn the unit on and off and switch the water outlet modes. The temperature control handle has a security stop preset at 38 degree centigrade (equal to 100.4 degrees Fahrenheit). The temperature override button will allow the user to exceed this temperature and reach temperatures of up to 50 degree centigrade (equal to 122 degrees Fahrenheit). It provides Thermostatic Control, Temperature Consistency, and Temperature Memory.