KMC Controls STE-1404 Sensor

The KMC Controls STE-1404 is a professional-grade 10K Type III thermistor engineered for precision sensing in commercial ductwork. Featuring a 12-inch rigid stainless steel probe with a 1/4" O.D., this sensor provides the high thermal conductivity and rapid response times required for accurate discharge air or return air monitoring. As a critical component for building automation systems (BAS), the STE-1404 duct temperature sensor is fully compatible with KMC BAC-1 controllers and other platforms utilizing a 10K-T3 resistance curve. The integrated plastic conduit enclosure and durable 304 stainless steel construction ensure long-term reliability in high-velocity airflow environments. This sensor is an industry standard for contractors requiring the KMC Controls STE-1400 series specifications for single-point temperature detection in AHUs and VAV terminals.

Key Benefits

• High-Accuracy Sensing: Utilizing a 10,000 ohm Type III NTC thermistor, the STE-1404 offers precise linear response and interoperability with major DDC controllers.
• Durable 12" Rigid Probe: The stainless steel 12-inch duct sensor probe resists corrosion and provides structural integrity even in high-static pressure applications.
• Fast Thermal Response: The 1/4" O.D. probe design maximizes heat transfer from the air stream to the sensing element for real-time system adjustments.
• Secure Installation: Includes an integrated enclosure with pre-wired leads, simplifying hardwired connections into standard 1/2" NPT conduit.
• NEMA 4X Compatibility: Built to withstand commercial HVAC environments, ensuring stable performance in various humidity and temperature conditions.

Common Questions

What is the difference between 10K Type III and Type II sensors?
While both are 10,000 ohm sensors at 77°F (25°C), they follow different resistance-temperature curves. The KMC Controls STE-1404 uses a Type III curve (10K-T3), typically found in Schneider Electric or Delta Controls systems, and is not a direct drop-in for Type II (10K-CP) systems without recalibration.

Can the STE-1404 be used for immersion applications?
No, this model is a rigid duct temperature sensor designed for air measurement. For liquid sensing in pipes, an immersion-style sensor from the STE-1400 series with a thermowell should be used instead.

Is the probe flexible for tight turns?
The STE-1404 features a 12" rigid probe. If your application requires navigating bends or averaging temperatures across a wide cross-section, a flexible averaging sensor (like the STE-1411/1412) is recommended.

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.