MAMAC Systems TE-705-B-17-C-1 Temperature Sensor

The MAMAC Systems TE-705-B-17-C-1 is a professional-grade duct averaging temperature sensor engineered for precise thermal monitoring in large plenums and high air flow HVAC systems. This model features a 24-foot bendable aluminum probe with a 3/8-inch diameter, allowing for flexible routing across the entire duct cross-section to eliminate errors caused by air stratification. Integrated within the assembly are four environmentally sealed 20,000 Ohm NTC thermistor modules that work in tandem to provide a true average temperature reading back to the Building Automation System (BAS). Housed in a rugged NEMA 1 galvanized steel enclosure, this unit is designed for internal mechanical room mounting where reliable resistance-based output is critical. The TE-705-B-17-C-1 operates within a wide temperature range of -40°F to 210°F, ensuring stable performance across heating and cooling cycles. For technicians, this 20k ohm thermistor sensor offers high interchangeability and long-term stability with minimal drift, making it a standard choice for demanding commercial HVACR applications.

Key Benefits

• 24-foot Flexible Probe: The 3/8" bendable aluminum construction allows for comprehensive duct coverage to capture accurate average air readings.
• High-Precision Sensing: Utilizes 20k Ohm NTC thermistors with ±0.2°C interchangeability for tight control in industrial automation.
• Durable Enclosure: The NEMA 1 galvanized steel housing protects internal terminal connections in mechanical room environments.
• Moisture Protection: Environmentally sealed sensor modules prevent failure from condensation in high-humidity air streams.
• Wide Compatibility: Standard resistance-based output integrates seamlessly with most major DDC controllers and building management systems.

Common Questions

What is the benefit of a 24-foot averaging probe?
In large supply air ducts, air can stratify into different temperature layers. A 24-foot duct averaging sensor like the TE-705-B-17-C-1 covers more surface area, ensuring the controller receives a representative average rather than a localized "hot" or "cold" spot reading.

Is the 20k Ohm NTC thermistor compatible with my controller?
The 20,000 Ohm NTC thermistor is a common standard in many HVACR control systems. You should verify that your specific BAS or DDC unit supports a 20k Ω curve before installation.

Can the aluminum probe be cut to a shorter length?
No, the 24-foot probe contains a series of internal sensor modules and wiring. Cutting the 3/8" aluminum tube will damage the sensing element and lead to failure. If a shorter length is required, use a 6-foot or 12-foot variant of the MAMAC TE-705 series.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.