A/RH2-D - The A/RH Series Relative Humidity Duct Transmitters utilize a capacitive sensing element to deliver a proportional analog output.  This series features on board DIP switches which allow the user to select the desired output signal and can be powered by AC or DC power sources.  Field calibration can be performed by using the on board increment and decrement DIP switches.  These enhancements provide increased flexibility and outstanding long-term performance.  The A/RH Series is covered by ACI's Five (5) Year Limited Warranty. ACI duct relative humidity sensors are designed for HVAC or Building Automation Systems.  Typical applications include: humidity control pharmaceutica school office auditorium museum and hospitals. Single point field calibration Field selectable output signals (0-5 VD 0-10 VD 4-20 mA)

+/-2% DUCT MT HUM SENSR W/NIST

A/RH2-O - The A/RH Series Relative Humidity Outside Transmitters utilize a capacitive sensing element to deliver a proportional analog output. This series features on board DIP switches which allow the user to select the desired output signal and can be powered by AC or DC power sources. Field calibration can be performed by using the on board increment and decrement DIP switches. These enhancements provide increased flexibility and outstanding long-term performance. The A/RH Series is covered by ACI's Five (5) Year Limited Warranty. ACI outside air relative humidity sensors are designed for HVAC or Building Automation Systems.  Typical applications include: fresh air intak humidity control pharmaceutica humidity chamber school office auditorium museum and hospitals. Single point field calibration Field selectable output signals (0-5 VD 0-10 VD 4-20 mA)