66 Series Duct-mounted Temperature & Humidity Transmitter

The 66-series temperature and humidity transmitter is designed to deliver precise and stable environmental measurements, even in harsh and demanding industrial conditions. It accurately measures relative humidity and temperature, making it suitable for applications such as HVAC control, cleanroom monitoring, process environments, and building automation.

To meet diverse installation needs, the transmitter is available in wall-mounted, duct-mounted, and remote probe configurations. The compact and intelligently designed housing helps reduce installation time and cost while offering an IP65 protection rating, safeguarding the sensor from dust, condensation, and environmental contamination.

Measurement is transmitted via two analog current output channels, providing real-time and reliable signal transmission to control systems. This supports seamless integration into existing industrial automation or building management systems.

Built for electromagnetic resilience, the transmitter features a robust circuit design that complies with EFT immunity standards (Grade 2). It can withstand continuous high-level electrical pulse interference without compromising measurement accuracy or device operation, making it ideal for use in facilities with power surges, motor drives, or welding equipment.

Internally, the device employs an ultra-low power consumption design that minimizes self-heating and significantly reduces temperature drift, enhancing overall stability and extending service life. The transmitter performs reliably in ambient temperatures from -40°C to +125°C—ensuring accurate and consistent data across extreme environments.