MAMAC Systems TE-205-F-3 Temperature Sensor

The MAMAC Systems TE-205-F-3 is a purpose-built outdoor air temperature sensor designed for the rigorous demands of building automation and mechanical systems. Featuring a high-precision 1,000 Ohm Platinum RTD (Resistance Temperature Detector) with a 385 alpha coefficient, this sensor delivers exceptional linearity and long-term stability across extreme temperature ranges. The TE-205-F-3 is housed in a heavy-duty, die-cast aluminum NEMA 4 / IP65 enclosure, providing superior protection against moisture migration, wind-driven rain, and airborne contaminants.

For contractors, the MAMAC TE-205-F-3 offers a streamlined installation with its integrated 1/2 inch NPT threaded hub and liquid-tight cord connector. This design effectively isolates the sensing element from the building's internal air, preventing "chimney effect" errors and ensuring 100% accurate ambient readings. The Platinum RTD sensor is hermetically sealed within a 304 stainless steel probe, making it immune to humidity-related failures and thermal shock. This sensor is fully compatible with most major BAS (Building Automation Systems) and controllers that accept a 1K ohm resistance input.

• Rugged NEMA 4 (IP65) rated die-cast aluminum enclosure ensures reliable operation in harsh climatological environments.
• High-accuracy 1,000 Ohm Platinum RTD sensor element reduces lead wire resistance errors compared to 100-ohm alternatives.
• Hermetically sealed 304 stainless steel probe protects against thermal shock, vibration, and moisture migration.
• The 1/2 inch NPT hub allows for secure, trouble-free conduit connection and field mounting.
• Liquid-tight cord connector ensures the outdoor air sensor is completely isolated from mechanical room air for precision measurement.

• How does the 1,000 Ohm Platinum RTD compare to 100-ohm versions? The 1,000-ohm element is significantly less sensitive to lead wire resistance, which is critical for HVAC temperature sensors installed far from the controller.
• Is the TE-205-F-3 compatible with standard controllers? Yes, its platinum RTD 385 curve is a standard input for the majority of building automation systems and HVAC control panels.
• Can this sensor be used in high-humidity areas? Absolutely. The sensor uses a patented monolithic encapsulation process in a stainless steel probe to prevent moisture from reaching the electrical components.

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.