Daikin-McQuay 668303351 Sensor

The Daikin-McQuay 668303351 is a precision-engineered indoor air sensor designed for high-accuracy environmental monitoring in critical HVACR applications. Featuring a 60-inch lead, this OEM replacement sensor is built to integrate seamlessly with MicroTech III unit controllers and broader building automation systems. As a veteran-grade HVAC thermistor, it provides real-time data on discharge air and coil temperatures, allowing for tight control of commercial air conditioning and heating cycles. The Daikin 668303351 sensor utilizes advanced sensing technology to detect fluctuations in particulate matter and air velocity, ensuring optimal indoor air quality (IAQ) and system efficiency. Its durable, industrial-grade design makes it suitable for demanding rooftop units and water source heat pumps where consistent performance is mandatory. By replacing faulty probes with this genuine 668303351 temperature sensor, technicians can eliminate diagnostic errors and restore factory-spec operation to Daikin and McQuay equipment. Key Benefits

• Precise Monitoring: Provides accurate environmental readings for temperature and humidity to optimize HVAC system performance.
• OEM Compatibility: Specifically engineered for Daikin McQuay systems, ensuring a perfect fit and reliable electrical interface.
• Extended Reach: The 60" probe length allows for flexible positioning within large air handlers or specialized coil configurations.
• Industrial Durability: Constructed to withstand the vibrational and thermal stresses found in commercial industrial environments.

Common Questions

Is the 668303351 sensor compatible with MicroTech controllers?
Yes, this sensor is a standard component for systems utilizing MicroTech and MT2300 controllers, specifically designed for seamless data integration.

What is the primary application for this 60-inch sensor?
It is primarily used as an indoor air or coil sensor to monitor discharge temperatures in commercial air handlers and heat pump systems.

Can I use this to replace a generic 3K or 10K ohm thermistor?
While it is an NTC thermistor, you must verify the resistance-to-temperature curve matches your specific Daikin controller to ensure accurate reporting.

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.