Honeywell C7189R3002-2 Room Sensor

The Honeywell C7189R3002-2 RedLink Wireless Indoor Sensor is a critical component for achieving precise temperature control and remote sensing in zoned or multi-stage HVAC applications. Operating on the RedLink 5.0GHz proprietary wireless protocol, this sensor eliminates the need for invasive wiring, making it an ideal solution for retrofitting historical buildings or correcting poor thermostat placement. When paired with a Prestige IAQ, VisionPRO 8000 Smart, or FocusPRO thermostat, it allows the system to average temperatures across multiple zones or dedicatedly sense from a single high-priority location. The unit features a compact, low-profile footprint and is powered by two AAA lithium batteries, ensuring long-term reliability in the field without frequent site visits. For contractors, the C7189R3002-2 simplifies HVAC zone balancing by providing real-time data to the primary controller, optimizing delta-T performance and reducing cycling frequency in residential or light commercial environments.

• RedLink Wireless Integration: Connects seamlessly to RedLink-enabled thermostats and Equipment Interface Modules (EIM) without interference from standard 2.4GHz Wi-Fi networks.
• Advanced Temperature Averaging: Configure up to 20 sensors per system to mitigate hot or cold spots in large floor plans.
• Simple Commissioning: Features a one-button linking process and a signal strength LED to verify connectivity during installation.
• Extended Battery Life: Optimized power consumption profiles provide years of operation on standard lithium cells.

Common Questions

Can this sensor be used for outdoor temperature sensing?
No, this model is specifically engineered for indoor ambient temperature sensing. For outdoor applications, a dedicated RedLink wireless outdoor sensor (C7089R1013) is required to enable heat pump balance points and dual-fuel cutovers.

How do I handle a "Sensor Lost" alert on the thermostat?
This typically indicates a signal obstruction or battery depletion. Check the RedLink signal strength at the sensor's mounting location and ensure the distance to the Wireless Equipment Manager or thermostat does not exceed the effective range through structural barriers.

Is this sensor compatible with non-RedLink Honeywell thermostats?
No, the C7189R3002-2 requires a RedLink Gateway or a thermostat with native RedLink communication protocols. It will not pair with standard Wi-Fi or Z-Wave controllers directly.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.