For Use With PC8900 Control Panel, For 2-Stage Heating & 2-Stage Cooling With Conventional Systems, Volts:24V, Provides A Wiring Panel And Switching For The Perfect Climate Comfort Control System, Measures And Controls Room Temperature And Humidity. Dims: 8-3/4" H X 6-7/16" W X 2-1/8" D, Wgt:
1Lb 10 Oz., Mfg Box, Made In Mexico.