MAMAC Systems TE-703-C-7-A-2 Temperature Sensor

The MAMAC Systems TE-703-C-7-A-2 is a professional-grade immersion temperature sensor specifically engineered for high-accuracy liquid temperature monitoring in commercial HVAC systems. This unit features a 10,000 Ohm NTC Thermistor (Type III) sensing element, providing reliable resistance-based output for chilled water, hot water, and condenser water applications. The 4-inch 304 stainless steel probe is hermetically sealed and crimp-attached to the housing, ensuring a low-profile mating surface that resists moisture migration—a common failure point in high-humidity environments.

Housed in a rugged NEMA 1 galvanized steel enclosure, this sensor includes a 1/4" NPT brass adapter for secure thermowell mounting. The keyed enclosure cover allows technicians to access 6-foot plenum-rated pigtail leads without fully removing screws, streamlining the BAS integration and field installation process. With an operating range of -40°F to 210°F, the TE-703-C-7-A-2 delivers the stability and repeatability required for precise building automation system performance in heavy-duty hydronic loops.

Key Benefits

• 10K Ohm Type III Thermistor: Provides universal compatibility with most industry-standard HVAC controllers and building management systems.
• Durable Construction: Features a corrosion-resistant 304 stainless steel probe and an 18-gauge galvanized steel enclosure for long-term mechanical reliability.
• Moisture Protection: The hermetic seal and epoxy encapsulation prevent capillary action from drawing condensation into the sensing element.
• Ease of Installation: Includes a 1/4" NPT adapter and 1/2" conduit opening, designed to simplify piping connections and electrical wiring in the field.

Common Questions

• Is this sensor compatible with my specific DDC controller? The 10K-3 thermistor curve is one of the most common standards used by major manufacturers; however, always verify the resistance-to-temperature chart matches your controller's input requirements.
• Can the probe length be shortened in the field? No, the 4-inch stainless steel probe is factory-sealed to maintain its environmental rating. Attempting to cut the probe will destroy the sensing element.
• Do I need to use thermal paste with this immersion sensor? For optimal thermal transfer and faster response times, applying a high-quality thermal compound to the probe tip before inserting it into the thermowell is highly 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.