This Solrus Remote is An After Market Replacement For CARRIER Air V Remote Control used in RV"s and Campers. Replaces Carrier Models 12-50095-00, 12-50074-00, 12-50152-00 This remote replaces the above model remotes used in the Carrier RV AirV air conditioning system. They have been obsoleted and are no longer supported by the manufacturer. Please see specifics listed below for the CR12-500 replacement remote. Features: - HEAT MODE - COOL MODE - ON/OFF BUTTON - FOR UNIT OPERATION - MODE BUTTON - COOL, DRY, FAN, FURNACE - FAN SPEED BUTTON - HIGH, LOW, AUTO - TEMPERATURE BUTTONS - UP, DOWN - LCD DISPLAY -TIMER FUNCTION ON/OFF Temperature Range 17c-32c (62.6F-89.6F) NOTE: CELSIUS TEMPERATURE IS DISPLAYED ONLY (Conversion chart scale is included) THIS REMOTE OPERATES THE CARRIER RV AIR CONDITIONERS AND FURNACES ONLY. NOTICE: IT DOES NOT OPERATE THE "HEAT PUMP" VERSION. ALSO IT IS NOT A UNIVERSAL REMOTE AND IT WILL NOT OPERATE ANY OTHER CARRIER EQUIPMENT. This remote only operates the Carrier AirV air conditioner and furnace. This is a custom remote control programmed to operate only the Carrier Airv air conditioning system. It is "custom programmed" and "modified" to only work with Carrier AirV systems.