Duct co2 sensors Ma or vdc output Element type

View Details Siemens QPM2100 Duct Sensor CO2, 0 to 10V  | Blackhawk Supply
$413.64 each
View Details Siemens QPM2160D DUCT CO2 + TEMP SENSOR, 0-10V, DISPLAY  | Blackhawk Supply
$599.71 each
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