MAMAC Systems TE-705-B-4-A-1 Temperature Sensor

The MAMAC Systems TE-705-B-4-A-1 is a commercial-grade duct averaging temperature sensor designed for precise climate control in large air handling units and plenums. Featuring a 1,000 Ohm Nickel RTD (6000 PPM) sensing element, this unit delivers high-accuracy resistance output to your building automation system (BAS) or DDC controller. The 6-foot bendable 3/8-inch aluminum probe is engineered to withstand high-velocity airflow while allowing for custom serpentine installation to eliminate the risks of temperature stratification. Encased in a rugged NEMA 1 galvanized steel enclosure, this sensor is built for the demanding environments of mechanical rooms. The continuous averaging technology ensures that the controller receives a representative data point of the entire duct cross-section rather than a single-point reading, which is critical for preventing coil freeze-up and optimizing economizer cycles. This HVAC temperature sensor provides reliable BAS integration and long-term stability for professional contractors managing sophisticated air distribution systems.

• Enhanced Accuracy: The 1,000 Ohm Nickel RTD element provides a 6000 PPM coefficient for precise averaging temperature sensing.
• Durable Construction: 18-gauge galvanized steel NEMA 1 enclosure protects internal connections from dust and physical impact.
• Flexible Installation: The 6-foot aluminum probe is easily shaped to maximize duct coverage and accurately capture stratified air layers.
• System Compatibility: Standard resistance output integrates seamlessly with most major building automation systems.
• Reliable Performance: Environmentally sealed sensor modules prevent moisture migration and ensure consistent readings in high-humidity return or supply air.

How does this sensor handle air stratification?
Unlike single-point sensors, the TE-705-B-4-A-1 averages the temperature across the entire 6-foot probe length, providing a mean value that compensates for uneven air mixing in large ducts.

What is the proper mounting procedure for the probe?
Technicians should drill a 7/16-inch hole and serpentine the bendable probe across the duct width, securing it with mounting clips to ensure the entire air stream is sampled.

Can the probe be trimmed if 6 feet is too long?
No, the aluminum probe contains precisely spaced sensing modules. Trimming the probe will damage the internal circuitry and cause the sensor to fail.

This item is not eligible for free shipping.

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.