This is a genuine Mitsubishi Electric original replacement part (not a universal remote) Controls group operation for up to 16 indoor units in a single group Set temperature range limit Simple ma for interlocked system can set high/low/stop on Lossnay Diagnostics: displays four-digit error code and error unit address Supports both Fahrenheit and Celsius BEWARE of cheap after-market versions which do not have all the features or quality of the genuine remote