MAMAC Systems TE-703-D-17-A-1 Temperature Sensor

The MAMAC Systems TE-703-D-17-A-1 is a professional-grade immersion temperature sensor engineered for precise thermal monitoring in demanding HVAC and industrial environments. This model features a high-accuracy 20,000 Ohm NTC thermistor, ensuring stable resistance output for building automation systems (BAS) and mechanical equipment room controllers. The sensor is housed in a rugged, 18-gauge cold-rolled NEMA 4 painted steel enclosure with welded seams and a gasketed cover, providing an IP65 rating against dust, oil vapor, and moisture in unconditioned spaces.

Designed for direct integration into hydronic systems, the unit includes a durable 4-inch 304 stainless steel probe and a 1/8" NPT brass adapter for secure thermowell mounting. The hermetically sealed probe tip prevents moisture migration and protects the sensing element from thermal shock and vibration. Contractors can rely on this sensor for hot or chilled water applications where long-term repeatability and accuracy are essential for high-performance sequence of operations.

Key Benefits

• Environmental Protection: The NEMA 4/IP65 powder-coated steel enclosure is built to withstand dirt, condensation, and harsh mechanical room conditions.
• High Precision: The 20k Ohm NTC thermistor provides ±0.2°C interchangeability at 77°F for reliable system feedback.
• Versatile Media Compatibility: Ideal for monitoring chilled water, condenser water, and low-pressure steam loops.
• Rugged Probe Design: Features a 4" stainless steel immersion probe that is corrosion-resistant and hermetically sealed.

Common Questions

What is the operating temperature range for this sensor?
The sensing element is rated for temperature ranges from -40°F to 210°F (-40°C to 100°C), making it suitable for most standard HVAC hydronic applications.

Does this unit come with a thermowell?
This model includes the 1/8" NPT adapter for mounting. The thermowell itself is typically a separate component specific to the pipe diameter and material, though the sensor's 4-inch probe is a standard size for most immersion installs.

Can the TE-703-D-17-A-1 be used in outdoor environments?
Yes, the NEMA 4 enclosure provides the necessary protection against windblown dust and rain, as well as splashing water, making it a reliable choice for outdoor or wash-down areas.

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.