MAMAC Systems TE-703-C-12-A-3 Sensor

The MAMAC Systems TE-703-C-12-A-3 is a professional-grade immersion temperature sensor designed for precise fluid monitoring in hydronic HVAC systems and commercial boiler loops. This unit features a 10,000 Ohm NTC Thermistor (Type II) sensing element, known for its high-accuracy interchangeability of ±0.2°C at 77°F, ensuring stable resistance-based temperature feedback for building automation systems (BAS). The 4-inch 304 stainless steel probe is hermetically sealed to prevent moisture migration and is crimp-attached to the enclosure for a low-profile, rugged mating surface.

Built for durability in mechanical rooms, this sensor is housed in an 18-gauge NEMA 1 galvanized steel enclosure with a keyed cover that allows for easy access without removing mounting screws. The integrated 1/2 inch NPT adapter and 1/2 inch conduit opening simplify field installation into standard thermowells. Optimized for industrial process control, the TE-703-C-12-A-3 operates reliably across a wide temperature range from -40°F to 210°F, making it a standard choice for chilled water, hot water, and condenser water applications.

• High Sensor Accuracy: Features a 10K Type II thermistor for precise ±0.36°F interchangeability.
• Rugged Construction: 304 stainless steel probe and galvanized steel housing withstand mechanical shock.
• Simplified Wiring: Keyed enclosure and conduit opening reduce labor time during field termination.
• Environmental Protection: Hermetically sealed probe design eliminates failures caused by humidity and condensation.
• Universal Compatibility: Standard 10K-2 curve integrates seamlessly with most major BAS and DDC controllers.

What is the difference between Type II and Type III 10K thermistors?
The Type II thermistor used in this model has a distinct resistance-to-temperature curve (steeper at lower temperatures) compared to Type III. Always verify your controller's input requirements to ensure accurate scaling.

Is this sensor compatible with high-pressure steam?
This sensor is designed for liquid immersion and low-pressure steam applications. For high-pressure steam, ensure the thermowell rating matches your system pressure and use appropriate thermal conductive paste.

Does this include the thermowell?
The TE-703-C-12-A-3 includes the 1/2" NPT adapter for mounting. The thermowell itself is typically sold separately or already installed in the piping system.

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.