Siemens QFM3171 Duct Humidity Temperature Sensor 4-20mA

Siemens QFM3171 Duct Humidity and Temperature Sensor is a high precision device to monitor environmental conditions in HVAC systems. The temperature and humidity sensor measures from -40 to 180 °F with 100K Ohm sensing element and 36" probe. It provides the HVAC management system with consistent, dependable feedback by using a 4–20 mA current signal for output. The long lasting white finished polymer sensor is ideal for installation in ducting applications. Its 2% accuracy ensures precise measurement is essential for preserving system efficiency and indoor air quality. Temperature and humidity monitoring is an accurate process since HVAC systems can change their operation to improve comfort and energy efficiency. Commercial and industrial HVAC systems typically use.