MAMAC Systems TE-703-D-12-A-2 Temperature Sensor

The MAMAC Systems TE-703-D-12-A-2 is a professional-grade immersion temperature sensor specifically engineered for hydronic HVAC systems and industrial process monitoring. Featuring a 10,000 Ohm NTC thermistor (Type II), this sensor provides high-stability resistance output for precise thermal tracking in unconditioned environments. The 4-inch stainless steel probe is constructed from 304 SS for superior corrosion resistance and features a hermetically sealed end to eliminate failures caused by moisture migration or condensation. For secure installation in pressurized lines, the unit includes a 1/4" NPT brass adapter with a compression sleeve, ensuring a waterproof HVAC sensor interface.

Housed in a rugged NEMA 4 painted steel enclosure, this assembly is designed to withstand dirt, oil vapor, and outdoor exposure. Technical performance is characterized by an interchangeability accuracy of +/- 0.2°C at 77°F, making it a reliable BAS temperature sensor for complex building automation controls. The 18-gauge cold-rolled steel housing with powder-coated finish and gasketed cover provides an IP-65 rating, protecting the internal thermistor temperature sensor from harsh mechanical room conditions. This model is a direct-fit solution for contractors seeking a building automation temperature sensor that combines long-term stability with a fast-acting thermal response time.

• Harsh Environment Protection: The NEMA 4/IP-65 rated enclosure features welded seams and an enamel finish for maximum durability in high-humidity or contaminated areas.
• Moisture Migration Resistance: Monolithic encapsulated cavity design protects the 10k Type 2 thermistor from the capillary effects of condensation.
• Universal Compatibility: The 10,000 Ohm Type II curve ensures seamless integration with most standard HVAC control systems.
• Industrial Build Quality: Features a 1/4" O.D. 304 stainless steel probe and a heavy-duty brass bulkhead fitting for reliable mechanical stability.

• What is the temperature operating range of this immersion probe? This sensor is rated for fluid temperatures from -40°F to 210°F (-40°C to 100°C), with an ambient enclosure limit of 160°F.
• Does this sensor require a specific thermowell? The TE-703-D-12-A-2 includes a 1/4" NPT adapter designed for mounting directly into a standard thermowell. Using a thermal conductive compound is recommended for optimal accuracy.
• How do I verify the sensor's calibration in the field? An ohmmeter can be used to measure the resistance across the lead wires once the sensor has stabilized; resistance should match the 10K Type II R-T curve.

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.