4-20mA

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  Siemens QAC3171 Outdoor Temperature Sensor, 4-20mA, -58 to 122F, Plastic

  $89.47
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  Siemens QFA2001 Humidity Room Sensor, 4-20mA, 2 Wire, 5%

  $164.86
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  Siemens QFA4171D Temperature and Humidity Room Sensor, Display, 4-20mA, 2%, Certified

  $620.01
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  Siemens QFM3171D Duct Temperature and Humidity Sensor, Display, 4-20mA, 2%

  $291.33
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  Siemens SQV91P30U Valve Actuator

  $855.92
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  Siemens SQV91P40U Valve Actuator

  $855.92