MAMAC Systems TE-705-B-12-B-1 Temperature Sensor

The MAMAC Systems TE-705-B-12-B-1 is a professional-grade duct averaging temperature sensor designed to provide precise thermal monitoring in large air handlers, plenums, and high-velocity ductwork. This unit features a 12-foot bendable 3/8" aluminum probe, which contains four discrete 10,000 Ohm NTC Thermistor (Type II) modules spaced evenly to neutralize the effects of air stratification. By sampling at multiple points across the air stream, the sensor ensures high accuracy and stability for Building Automation Systems (BAS) and HVAC operations.

Encased in a rugged NEMA 1 galvanized steel enclosure (IP-30), this sensor is built for long-term reliability in commercial mechanical rooms. The rigid but flexible aluminum construction allows for custom shaping to fit specific duct geometry while maintaining its profile within the air flow. With an operating temperature range of -40°F to 210°F and environmentally sealed sensor modules, the TE-705-B-12-B-1 effectively mitigates moisture migration and condensation risks common in cooling applications. This HVAC temperature sensor is universally compatible with many major controller brands, making it a reliable choice for field replacements or new installations.

Key Benefits

• Precision Duct Averaging: Eliminates false readings caused by stratified air through four multiplexed sensor elements.
• Durable Construction: Features an 18-gauge galvanized steel enclosure and a corrosion-resistant aluminum probe.
• Wide Compatibility: The 10K Ohm Type II thermistor interface integrates seamlessly with most standard building controllers.
• Simplified Installation: The 12-foot flexible probe uncoils easily for fast mounting across large supply or return air ducts.

Common Questions

Is this sensor compatible with my existing BAS controller?
The TE-705-B-12-B-1 uses a 10K Type II NTC thermistor. You should verify that your specific controller's analog input is configured for a 10K Type II resistance curve to ensure accurate data translation.

Where is the best location to install an averaging sensor?
For best results, install the probe in a straight run of ductwork downstream from mixing baffles or coils. Avoid areas with high turbulence to prevent mechanical stress on the probe and ensure a representative average temperature.

Can the probe be cut to a shorter length?
No, the aluminum probe contains critical sensor wiring and discrete thermistor modules. Cutting the 12-foot probe will destroy the internal circuitry and render the sensor non-functional.

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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.