Description
The ACI 121977 is a 10kOhm thermistor-based duct temperature sensor housed in a rugged 4″ enclosure, engineered for reliable air temperature measurement in HVAC duct systems. Designed by Automation Components Inc (ACI), this sensor is a trusted choice for building automation and commercial HVAC control applications where accurate duct temperature sensing is essential.
The 10kOhm thermistor element provides a stable, repeatable resistance-to-temperature response, making it compatible with a wide range of building automation system (BAS) controllers, DDC panels, and HVAC zone control equipment. The 4″ enclosure protects the sensing element and wiring connections from dust, debris, and physical damage common in duct environments.
Key Features
- 10kOhm thermistor sensing element for precise duct air temperature measurement
- 4″ enclosure for durable, protected installation in supply or return air ducts
- Compatible with most building automation systems and DDC controllers
- Designed for commercial and light industrial HVAC applications
- Easy field installation with straightforward wiring connections
- Reliable resistance-temperature curve for consistent performance
Applications
- Supply and return air duct temperature monitoring
- Building automation and energy management systems
- HVAC zone control and air handling unit (AHU) control loops
- Commercial and institutional HVAC installations
Product Specifications
- Brand: ACI (Automation Components Inc)
- SKU: 121977
- Sensor Type: 10kOhm Thermistor
- Mounting: Duct-mount with 4″ enclosure
- Application: Duct air temperature sensing
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