Honeywell Home RedLINK Wireless Indoor Air Sensor – Universal Model

The Wireless Indoor Air Sensor (HW-C7189R1004U) is a RedLINK-enabled, battery-powered sensor designed for remote monitoring of indoor temperature and humidity in compatible HVAC systems. Supporting up to six sensors per thermostat, it allows for temperature averaging or remote sensing to enhance comfort and system accuracy. Operating within a temperature range of 35°F to 114°F and 5% to 95% non-condensing humidity, this factory-calibrated unit requires no field calibration and installs easily using the included wall bracket and hardware. A built-in LED indicator provides low-battery alerts for maintenance awareness. Compact and reliable, it’s an ideal solution for technicians seeking precise, wireless environmental sensing to optimize RedLINK-enabled HVAC performance.