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Lead Lag controller 24 volt provides balanced running time between 2 redundant devices.

Universal Twinning Kit allows a single t-stat to control two identical HVAC units w/ one thermostat. Optional control of up to four units. DOES NOT INCLUDE TRANSFORMER.

Universal Thermostat Smart Wire Module is a 2 TO 5 adaptor which allows you to add up to 5 additional outputs over a single pair of wires. reduces installation cost by not having to pull additional wire. Supports both heat pumps and conv. systems, Compatible with virtually all major thermostat brands. Includes compact sender module and relay receiver module.