The KMC Controls STE-1451 is a professional-grade outside air temperature sensor designed for precise ambient monitoring in building automation systems. Built around a high-accuracy 10,000 ohm Type III thermistor, this sensor provides the reliable resistance-to-temperature data required for critical HVAC functions like economizer control, chiller dispatch, and weather-compensated heating resets. The STE-1451 is housed in a rugged, NEMA 4X (IP65) aluminum LB-style conduit box, ensuring the internal sensing element remains protected against moisture, wind, and debris. To prevent solar gain from skewing temperature readings, the unit features an integrated sun shield, maintaining +/-0.36??F accuracy even in direct sunlight. This sensor is fully compatible with BAC-1 series controllers and any system supporting a 10k-T3 input curve. Engineered for long-term stability and fast thermal response, the KMC Controls STE-1451 is the standard choice for contractors looking to optimize energy efficiency and occupant comfort through accurate outdoor air temperature monitoring. Key Benefits for Technicians Environmental Protection: The NEMA 4X rated aluminum enclosure provides superior corrosion resistance and a weatherproof seal for harsh outdoor installations. Enhanced Accuracy: Features an integrated sun shield to eliminate radiant heat interference, ensuring the 10k Type III thermistor reads true ambient air temperature. Universal Compatibility: Standard 10,000 ohm resistance works seamlessly with KMC BAC-1 controllers and most industry-standard BAS platforms. Simplified Installation: Includes a 1/2-inch NPT fitting for direct connection to standard conduit, streamlining HVAC sensor replacement and new builds. Common Questions What is the resistance curve of the STE-1451? This model utilizes a Type III 10k ohm thermistor. It is not compatible with Type II (10k-CP) inputs without board-level scaling or signal conversion. Can this sensor be used for duct or immersion applications? While the STE-1400 series offers various configurations, the STE-1451 is specifically optimized for outside air applications due to its sun shield and weatherproof gasketed housing. How does the STE-1451 handle moisture? The unit is rated IP65 / NEMA 4X, meaning it is protected against windblown dust and rain. The gasketed conduit box prevents moisture migration into the electrical connections. This item is not eligible for free shipping. 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.
