Air quality sensors 24vac/dc Voltage
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![Siemens QPM2100 Duct Sensor CO2, 0 to 10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPM2100_medium.jpg?v=1720023818)
QPM2100 | Duct Sensor CO2, 0 to 10V | Siemens
Brand: Siemens
SKU: QPM2100
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![Siemens QPA2002D Room sensor CO2 and VOC with Display, 0 to 10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPA2002D_medium.jpg?v=1720023809)
QPA2002D | Room sensor CO2 and VOC with Display, 0 to 10V | Siemens
Brand: Siemens
SKU: QPA2002D
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![Siemens QPM2102 Duct Sensor CO2 and VOC, 0 to 10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPM2102_medium.jpg?v=1720023818)
QPM2102 | Duct Sensor CO2 and VOC, 0 to 10V | Siemens
Brand: Siemens
SKU: QPM2102
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![Siemens QPM2102D Duct Sensor CO2 and VOC with Display, 0 to 10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPM2102D_medium.jpg?v=1720023803)
QPM2102D | Duct Sensor CO2 and VOC with Display, 0 to 10V | Siemens
Brand: Siemens
SKU: QPM2102D
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![Siemens QPM2180 Duct CO2 Sensor selectable resistance temperature output | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPM2180_medium.jpg?v=1720023832)
QPM2180 | Duct CO2 Sensor selectable resistance temperature output | Siemens
Brand: Siemens
SKU: QPM2180
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![Siemens QPA2060 Room Sensor CO2 and Temperature, 0 to 10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPA2060_medium.jpg?v=1720023791)
QPA2060 | Room Sensor CO2 and Temperature, 0 to 10V | Siemens
Brand: Siemens
SKU: QPA2060
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![Siemens QPA2062D Room Sensor CO2 + Temperature + Relative Humidity with Display, 0-10V | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPA2062D_medium.jpg?v=1720023785)
QPA2062D | Room Sensor CO2 + Temperature + Relative Humidity with Display, 0-10V | Siemens
Brand: Siemens
SKU: QPA2062D
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![Siemens QPM2160D DUCT CO2 + TEMP SENSOR, 0-10V, DISPLAY | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/QPM2160D_medium.jpg?v=1720023797)
QPM2160D | DUCT CO2 + TEMP SENSOR, 0-10V, DISPLAY | Siemens
Brand: Siemens
SKU: QPM2160D
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