Honeywell Home C7189U1005 Wired Indoor Temperature Sensor

Honeywell Home C7189U1005 Wired Indoor Temperature Sensor

The Honeywell Home C7189U1005 Wired Indoor Temperature Sensor provides remote room temperature measurements for compatible VisionPRO and VisionPRO IAQ thermostats. Designed for installations where the primary thermostat cannot accurately measure the desired room temperature, this compact wall-mounted sensor uses a wired connection to communicate temperature readings to the thermostat, supporting more precise HVAC temperature control.

Ideal for residential heating and cooling systems, commercial offices, conference rooms, and multiroom HVAC applications, the C7189U1005 helps address temperature differences between the thermostat location and occupied spaces. Its negative temperature coefficient (NTC) thermistor responds to changes in ambient temperature, enabling compatible thermostats to monitor conditions remotely. The sensor operates within a temperature range of 45°F to 88°F and delivers measurement accuracy of ±1.5°F at 70°F. For installations requiring multiple sensing points, compatible thermostats can use additional C7189U sensors in a wired temperature-averaging network. This functionality helps HVAC installers achieve more representative temperature measurements across larger spaces or rooms with varying thermal conditions.

Manufactured by Resideo under the Honeywell Home brand, the C7189U1005 features a compact Premier White enclosure designed for discreet installation on interior walls. Its factory-calibrated sensing element eliminates the need for field calibration, while the two-wire, polarity-independent terminal connection simplifies installation. Supporting wiring distances up to 200 feet, the sensor offers flexibility when positioning temperature measurement points away from the thermostat. Its wall-mounted design and compatibility with supported professional thermostat systems make it suitable for new HVAC installations, system upgrades, and replacement applications.

Key Features

• Remote Room Temperature Sensing: Measures indoor temperature away from the main thermostat, helping compatible heating and cooling systems respond to conditions in the intended space.
• Honeywell Home Thermostat Compatibility: Works with supported VisionPRO and VisionPRO IAQ thermostats equipped with compatible remote indoor temperature sensor connections.
• Factory-Calibrated Accuracy: Delivers temperature measurements accurate to ±1.5°F at 70°F without requiring field calibration or manual sensor adjustments.
• 10K NTC Thermistor: Uses temperature-sensitive electrical resistance to provide compatible thermostats with reliable remote temperature measurements.
• Temperature Averaging Support: Allows multiple compatible wired sensors to contribute to a temperature-averaging network when supported by the thermostat configuration.
• 200-Foot Maximum Wiring Distance: Supports flexible sensor placement throughout residential and commercial interiors using an appropriate wired connection.
• Simple Two-Wire Installation: Features non-polarized screw terminals for convenient connection to compatible thermostat remote sensor inputs.
• Compact Wall-Mounted Housing: Features a Premier White finish and small enclosure that integrates discreetly into residential and professional environments.

Technical Specifications

General Information

• Brand: Honeywell Home
• Manufacturer: Resideo
• Model Number: C7189U1005
• Manufacturer Part Number: C7189U1005/U
• Product Series: C7189U
• Product Type: Wired Remote Indoor Temperature Sensor
• Application: Remote Indoor HVAC Temperature Monitoring
• Installation Environment: Indoor
• Color: Premier White
• Mounting Configuration: Surface Wall Mount
• Country of Origin: Mexico

Temperature Sensing Specifications

• Sensing Element: Negative Temperature Coefficient (NTC) Thermistor
• Nominal Sensor Resistance: 10 Kilohms
• Measured Parameter: Indoor Air Temperature
• Operating Temperature Range: 45°F to 88°F
• Sensor Accuracy: ±1.5°F at 70°F
• Operating Relative Humidity: 5% to 95% RH, Non-Condensing
• Resistance Characteristics: Electrical Resistance Decreases as Ambient Temperature Increases
• Factory Calibration: Factory-Calibrated
• Field Calibration: Not Required
• Multiple Sensor Operation: Supported in Compatible Temperature-Averaging Networks

Electrical and Connectivity Specifications

• Connection Type: Wired
• Wiring Configuration: Two-Wire
• Terminal Configuration: Screw Terminal Block
• Wiring Polarity: Polarity-Independent
• Maximum Wiring Distance: 200 ft
• Sensor Communication: Resistance-Based Temperature Measurement
• Primary Thermostat Compatibility: Supported Honeywell Home VisionPRO and VisionPRO IAQ Thermostats
• Supported Installation Modes: Individual Remote Sensor or Compatible Multi-Sensor Averaging Network

Physical Specifications

• Height: 2.3"
• Width: 1.5"
• Depth: 0.8"
• Listed Weight: 0.1 lb
• Housing Finish: Premier White
• Installation Method: Direct Wall Mounting
• Recommended Mounting Height: Approximately 60" Above Floor Level
• Mounting Hardware: Screws and Wall Anchors

What's in the Box

• 1 x Honeywell Home C7189U1005 Remote Indoor Temperature Sensor
• Mounting Screws
• Wall Anchors