Argo 3-Zone (2 Air & 1 Priority) Control ARH-3Plug 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 INCHES12 WIDTH INCHES8 HEIGHT INCHES4 WEIGHT LBS5 COLORBlack ZONE QUANTITY3 AMPERAGE10 LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERARH-3