Thermostat Interface Enables Fujitsu Mini-Split Systems to Work With Third-Party 24VAC Thermostats, Such as Honeywell and Nest. Color: White, Power Supply: 12.72 - 19.08 VDC, Wire Type: Non Polar 2 or 3 Core Sheathed PVC Cabel, Operating Temperature Range: 0C - 47C, Features: Able to Connect Up to 16 Indoor Units, Field supplied 24V Tansformer Required (Not Included), Dimensions: 1-1/16"H x 3-7/16"W x 3-7/16"D, Weight: 0.25lbs