Sensors And Field Devices Duct T & RH Transmitter Air Velocity Transmitter Liquid DP Transmitter OA Temp.sensor CMT-Carbon Monoxide Transmitter Water Flow switch DP Switch Magnehelic Diff.pressure Guage Liquid DP Switch Water leak detector Diff. Pr. Gage Air Quality Monitors Duct / immersion Temp.sensor Air Flow Transducers Liquid DP Transmitter Temp.sensor