AprilAire Model 50 Low Voltage Current Sensing Relay Whole-House Evap Humidifier

BN Current Sensing Switch FCS003

ICM866U-LF Motor Hard Start, Voltage Sensing w/ High-Powered Relay for 1/12-5HP

3Cr-211-179 Klixon Current Start Relay For HVAC Compressor Refrigerant AC System

Aprilaire 50 Relay (24v)

BN Current Sensing Switch FCS003+

AprilAire Model A50 Current Sensing Relay, NEW!