Model #: GC-TBZ48 L-C3   Battery powered design runs on 4 "AA" batteries Extremely long 2 year battery life Can be powered by 24 VAC "C" wire from HVAC system Z-Wave compatible - Ver. 4.5.5 Supports Z-Wave FLiRS functionality Works on standard HVAC systems: 2 stage heat/ 2 stage cool Works on heat pump HVAC systems: 3 stage heat/ 2 stage cool Incredibly easy to install and program USB firmware upgrade ability Wall mount or mounts on single-gang junction box

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