Temperature & Humidity Controller for Vehicles HC-100 SH-700 SM-100 SH-800 SH-200 SH-900 SH-600 En-SUB HC-100 Features Auto temperature control for vehicle heaters, partition fans, and auxiliary evaporator Selective control of heating and cooling for B room Possible to be used a refrigerator controller in case a separate relay box (HC-RB) is connected Support for various communication outputs, such as CDMA terminals, PDA, and recorders A cigarette pack-sized compact and refined design Convenient enough to be easily assembled and disassembled Various functions available as option   - Selective control of heating and cooling   - Selection of wireless communication output