The MAMAC Systems TE-701-D-21-C is a precision duct temperature sensor engineered for reliable air temperature monitoring in commercial and industrial HVAC systems. Featuring a 1,800 Ohm NTC (Negative Temperature Coefficient) thermistor sensing element, this sensor delivers accurate and responsive temperature readings across a wide range of duct applications, making it an ideal choice for building automation and energy management systems.
Key Features
- 1,800 Ohm NTC thermistor sensing element for accurate, stable temperature measurement
- 8″ insertion probe length for effective mid-duct air sampling
- Bulkhead mount design for secure, vibration-resistant installation in duct walls
- 6-foot plenum-rated cable for safe routing in air-handling spaces and plenum environments
- Designed for compatibility with a wide range of building automation system (BAS) controllers and DDC systems
- Durable construction suitable for commercial HVAC duct installations
Sensor Technology
The NTC thermistor technology used in the TE-701-D-21-C provides a predictable resistance-to-temperature relationship, enabling precise signal interpretation by connected controllers. The 1,800 Ohm base resistance is a widely accepted standard in building automation, ensuring broad compatibility with major BAS platforms.
Installation & Mounting
The bulkhead mount configuration allows for straightforward installation through the duct wall, securing the probe at the correct insertion depth while maintaining an airtight seal. The 6-foot plenum-rated cable meets safety requirements for use in air-return and plenum spaces, simplifying wiring runs to nearby control panels or junction boxes.
Applications
- Supply air and return air duct temperature sensing
- Mixed air temperature monitoring in air handling units (AHUs)
- Building automation and direct digital control (DDC) systems
- Energy management and HVAC optimization systems
- Commercial and light industrial HVAC installations
Specifications
- Model: TE-701-D-21-C
- Sensor Type: NTC Thermistor
- Resistance: 1,800 Ohm
- Probe Length: 8 inches
- Mounting: Bulkhead Mount
- Cable: 6-foot plenum-rated cable
- Brand: MAMAC Systems








