Honeywell C7089R1013/U – RedLINK™ Outdoor Temperature and Humidity Sensor
The Honeywell C7089R1013/U is a wireless outdoor sensor designed for use with RedLINK™-enabled thermostats and zoning systems. It provides continuous outdoor temperature and humidity readings, transmitting environmental data to compatible control units for system optimization and climate-based automation.
Application Overview
This sensor is intended for outdoor installation in HVAC systems requiring external ambient monitoring. It supports energy-saving strategies, including balance point control and temperature-based ventilation logic. The unit operates on RedLINK™ wireless technology and integrates seamlessly without the need for wired connections between the sensor and thermostat.
Product Features
Wireless Connectivity: Utilizes Honeywell RedLINK™ protocol for secure, interference-resistant transmission
Dual Sensing: Measures both temperature and relative humidity for use in control algorithms and system logic
Extreme Environment Rating: Operating temperature range from -40°F to 140°F; 0–100% RH non-condensing
Battery Operated: Includes two AA lithium batteries rated for up to 5 years of service life
Vertical Mount Design: Bracket and fasteners included for standard outdoor surface mounting
Low Battery Indicator: Sends alert to thermostat two months before power depletion
Technical Specifications
Model: C7089R1013/U
Temperature Range: -40°F to 140°F (-40°C to 60°C)
Humidity Range: 0% to 100% RH (non-condensing)
Power: 2 AA 1.5V lithium batteries (included)
Battery Life: Up to 5 years under normal use
Mounting: Vertical wall mounting with included bracket
Dimensions: 5" H x 3.5" W x 1.6875" D
Installation Guidelines
Sensor must be mounted outdoors, shielded from direct sunlight and precipitation for optimal performance. Maintain line-of-sight or minimal obstructions between the sensor and the RedLINK™ thermostat or gateway for best signal integrity. Avoid placement near exhaust vents or artificial heat sources.
Professional Considerations
Verify compatibility with RedLINK™-enabled devices prior to installation
Use only lithium batteries for extended temperature range tolerance and reliable power delivery
Signal range depends on environmental conditions and building materials; assess placement during installation
Designed for outdoor use only; not intended for indoor remote sensing
Summary
The Honeywell C7089R1013/U is a dedicated outdoor sensor for use with RedLINK™ thermostats and zoning modules. It enables accurate remote monitoring of external conditions, supporting advanced system control strategies such as weather-responsive setpoints and ventilation staging. Engineered for durability and long-term performance in demanding environments.