This Siemens 540-128 10K OHM Thermistor TEC Duct Temperature Sensor is a top-of-the-line product that will meet all your temperature sensing needs. With a brand name like Siemens, you can be assured of the quality of this product. It is designed for use with corded electric power sources and is perfect for HVAC & Refrigeration requirements.

The model number of the product is 540-128 and it was manufactured in 2019 in the United States. The product is new and comes in an open box. It is a highly sensitive product that is ideal for temperature measurement in a range of settings. With its precise readings and accurate measurements, this product is a must-have for anyone in the HVAC & Refrigeration industries.