Dwyer Instruments RHPX-3SDAB-00 Humidity & Temperature Transmitter, 0-100% RH, 10kΩ Thermistor, Duct Mount, IP66

The transmitter provides a configurable analog output, typically selectable between a 4-20mA current loop or a 0-10V voltage signal. This standard industrial output ensures direct compatibility with programmable logic controllers (PLCs), building management system (BMS) inputs, and data acquisition modules without requiring additional signal conditioning.

The unit is designed for direct duct mounting. Its compact, IP66-rated enclosure can be installed through a pre-cut hole in the duct wall, secured with the provided mounting hardware. The tool-free design facilitates easy insertion and replacement, ensuring the sensing element is properly exposed to the air stream for accurate measurement.

The transmitter operates from a 10 to 35 VDC power source. This wide input voltage range accommodates most common industrial and building automation power supplies. Ensure proper polarity and consider using a fused or protected power line as per standard installation practices for reliable, long-term operation.

While the IP66 rating provides excellent protection against dust and high-pressure water jets from any direction, the primary design is for indoor duct and HVAC applications. For outdoor use, the sensor must be installed in a location protected from direct weather exposure and UV radiation, and the operating temperature limits (-40°C to 60°C) must be strictly observed.