This Johnson Controls outdoor relative humidity transmitter with sensor operates on a 10VDC power supply. It is designed to accurately measure and transmit relative humidity data in outdoor environments. The transmitter utilizes a sensor to detect the moisture content in the air and converts it into an electrical signal. This information can be used for various applications such as weather monitoring, HVAC systems, and environmental control. The transmitter is built to withstand outdoor conditions and provides reliable and precise measurements of relative humidity.