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![Siemens QFA3171 Outside Air RH and Temp Sensor, 2 percent, RH: 4-20 4 to 20 Ma T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QFA3171_80c357e0-a775-40db-8f7d-b1764347d1b4_medium.jpg?v=1714161931)
QFA3171 | Outside Air RH and Temp Sensor, 2 percent, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFA3171
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![Siemens QFA3171D Outside Air RH & T Sensor, 2 percent, RH: 4-20 mA T: 4-20 mA, Display | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFA3171D_medium.jpg?v=1692723009)
QFA3171D | Outside Air RH & T Sensor, 2 percent, RH: 4-20 mA T: 4-20 mA, Display | Siemens
Brand: Siemens
SKU: QFA3171D
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![Siemens QFM3101 Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFM3101_medium.jpg?v=1692722967)
QFM3101 | Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Siemens
Brand: Siemens
SKU: QFM3101
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![Siemens QAC3171 OUTDR TMP SNSR, 4-20mA, -58-122F, PLSTIC | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QAC3171_953d7c1b-f185-4005-b90f-ada0b7c242e7_medium.jpg?v=1719348716)
QAC3171 | OUTDR TMP SNSR, 4-20mA, -58-122F, PLSTIC | Siemens
Brand: Siemens
SKU: QAC3171
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![Siemens QFA3101 Outside Air Relative Humidity Sensor, 2 percent, 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFA3101_medium.jpg?v=1692722952)
QFA3101 | Outside Air Relative Humidity Sensor, 2 percent, 4-20 mA | Siemens
Brand: Siemens
SKU: QFA3101
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![Siemens QFM2101 Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFM2101_medium.jpg?v=1692723002)
QFM2101 | Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Siemens
Brand: Siemens
SKU: QFM2101
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![Siemens QFA4171 Outside Air RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFA4171_medium.jpg?v=1709330038)
QFA4171 | Outside Air RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFA4171
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![Siemens QFM3171D DUCT RH & TMP SNSR, 4-20mA, 2%, DISPLAY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFM3171D_medium.jpg?v=1692723028)
QFM3171D | DUCT RH & TMP SNSR, 4-20mA, 2%, DISPLAY | Siemens
Brand: Siemens
SKU: QFM3171D
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![Siemens QFA2001 ROOM RH SENSOR, 4-20MA, 2 WIRE, 5% | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFA2001_medium.jpg?v=1692722985)
QFA2001 | ROOM RH SENSOR, 4-20MA, 2 WIRE, 5% | Siemens
Brand: Siemens
SKU: QFA2001
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![Siemens QFM3171 Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 4-20 4 T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFM3171_medium.jpg?v=1708621550)
QFM3171 | Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 4-20 4 T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFM3171
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![Siemens QFM2171 Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFM2171_medium.jpg?v=1692722956)
QFM2171 | Duct RH and Temp Sensor, 5 percent accuracy, RH: 4-20 4 to 20 Ma T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFM2171
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![Siemens QFM4171 Duct RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFM4171_medium.jpg?v=1692723020)
QFM4171 | Duct RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Siemens
Brand: Siemens
SKU: QFM4171
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![Siemens QFA4171D ROOM RH&T SNSR, 4-20mA, 2%, DSPLAY, CERT | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/products/QFA4171D_medium.jpg?v=1692722991)
QFA4171D | ROOM RH&T SNSR, 4-20mA, 2%, DSPLAY, CERT | Siemens
Brand: Siemens
SKU: QFA4171D
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