Wireless FocusPRO thermostat kit. RedLINK™ enabled. Up to 3 heat/2 cool (heat pump) or up to 2 heat/2 cool conventional HVAC stages. Everything you need to relocate or upgrade non-programmable thermostat without running new wires. Kit options include wireless outdoor sensor, RedLINK Internet gateway for remote access, or wireless adapters for working with TrueZONE panels. Wireless FOCUSPRO® thermostat has same great features of FocusPRO® thermostat, but now wireless. Installs in minutes. Displays outdoor temperature and humidity. One-year battery life; two-month low battery warning. Dual fuel enabled. Equipment interface module means that all HVAC equipment is wired to module. Module receives communication from wireless devices. Return air sensor works with equipment interface module to maintain safe indoor temperatures if power is lost at wireless thermostat. Maintains 62F for heating and 82F for cooling. REDLINK™ wireless technology; RedLINK™ reliability. No interference with other wireless devices in the home.