Honeywell C7041R2018 20K Ohm NTC Duct Averaging Temperature Sensor, 24 Ft

Description

The Honeywell C7041R2018 is a precision 20K Ohm NTC duct averaging temperature sensor engineered for accurate air temperature measurement across wide duct cross-sections. With a 24-foot insertion length, it captures a true average temperature reading rather than a single-point measurement, making it ideal for large commercial ductwork and air handling applications.

Designed for seamless integration with Honeywell’s Excel 10, 50, 80, 100, and 500 Series building automation controllers, the C7041R2018 delivers reliable, repeatable performance in demanding HVAC environments. Its broad operating temperature range of -40°F to 250°F ensures dependable operation across a wide spectrum of heating and cooling conditions.

Key Features

• 20K Ohm NTC thermistor resistance at 77°F (25°C) for accurate temperature sensing
• 24-foot flexible averaging element for true duct cross-section temperature measurement
• Wide operating temperature range: -40°F to 250°F (-40°C to 121°C)
• Duct averaging design eliminates hot and cold spot inaccuracies
• Compatible with Honeywell Excel 10, 50, 80, 100, and 500 Series controllers
• Ideal for commercial air handling units, VAV systems, and large duct applications

Specifications

• Model: C7041R2018
• Sensor Type: 20K Ohm NTC (Negative Temperature Coefficient) Thermistor
• Resistance at 77°F (25°C): 20,000 Ohms
• Insertion Length: 24 Feet
• Operating Temperature Range: -40°F to 250°F (-40°C to 121°C)
• Application: Duct Averaging
• Compatible Controllers: Honeywell Excel 10, Excel 50, Excel 80, Excel 100, Excel 500 Series

Application

The C7041R2018 is the preferred choice for commercial HVAC professionals who need accurate mixed-air, supply-air, or return-air temperature readings in large duct systems. The averaging element is threaded back and forth across the duct interior to sample multiple points simultaneously, providing a single, accurate average signal to the building automation system. This approach significantly improves control accuracy and system efficiency compared to single-point sensors.