Argo 2-Zone (1 Air & 1 Priority) Control ARH-2Plug In Connectors For Easy Expansion Up To 20 Zones / Multiple Terminals For 2-Speed Air Handlers / Built-In Air Handler Freeze Protection / Switchable Priority For Domestic Hot Water Applications / LED Diagnostic Lights For Easy Troubleshooting / Includes Strap On Bi-Metal Aquastat To Prevent Cold Air Circulatin In Heating Mode Product Specifications BRANDArgo LENGTH INCHES9-1/2 WIDTH INCHES8 HEIGHT INCHES3 WEIGHT LBS3.5 COLORBlack ZONE QUANTITY2 AMPERAGE10 LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERARH-2