Duct Sensors: Essential for HVAC Efficiency and Comfort

Midwest Supply offers a wide selection of duct sensors for precise airflow temperature and humidity monitoring. Our sensors are designed to ensure optimal HVAC performance, prevent costly damage, and maintain comfortable indoor environments.
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View Details BAPI BA/1K-H210-D-BBX Duct Humidity (%RH) Sensor with Optional Temperature Sensor | Midwest Supply Us
BA/1K-H210-D-BBX | Duct Humidity (%RH) Sensor with Optional Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/1K-H210-D-BBX
$111.10 each
View Details BAPI BA/1K-D-18" Duct Temperature Sensor | Midwest Supply Us
BA/1K-D-18" | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/1K-D-18"
$13.42 each
View Details BAPI BA/10K-3-H210-D-BBX Duct Humidity (%RH) Sensor with Optional Temperature Sensor | Midwest Supply Us
BA/10K-3-H210-D-BBX | Duct Humidity (%RH) Sensor with Optional Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-3-H210-D-BBX
$108.17 each
View Details BAPI BA/10K-3-D-12"-NB-10' Duct Temperature Sensor | Midwest Supply Us
BA/10K-3-D-12"-NB-10' | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-3-D-12"-NB-10'
$12.16 each
View Details BAPI BA/10K-3-D-12"-NB-18" Duct Temperature Sensor | Midwest Supply Us
BA/10K-3-D-12"-NB-18" | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-3-D-12"-NB-18"
$10.48 each
View Details BAPI BA/10K-3[11K]-D-12"-NB-10' Duct Temperature Sensor | Midwest Supply Us
BA/10K-3[11K]-D-12"-NB-10' | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-3[11K]-D-12"-NB-10'
$12.16 each
View Details BAPI BA/10K-3[11K]-D-8"-NB-10' Duct Temperature Sensor | Midwest Supply Us
BA/10K-3[11K]-D-8"-NB-10' | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-3[11K]-D-8"-NB-10'
$12.16 each
View Details BAPI BA/10K-3[11K]-D-12" Duct Temperature Sensor | Midwest Supply Us
BA/10K-3[11K]-D-12" | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-3[11K]-D-12"
$10.48 each
View Details BAPI BA/10K-2-H210-D-BB2 Duct Humidity (%RH) Sensor with Optional Temperature Sensor | Midwest Supply Us
BA/10K-2-H210-D-BB2 | Duct Humidity (%RH) Sensor with Optional Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-H210-D-BB2
$113.20 each
View Details BAPI BA/10K-2-D-4" Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-4" | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-4"
$10.48 each
View Details BAPI BA/10K-2-D-18"-NB-10' Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-18"-NB-10' | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-18"-NB-10'
$12.16 each
View Details BAPI BA/10K-2-D-8"-NB-18" Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-8"-NB-18" | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-8"-NB-18"
$10.48 each
View Details BAPI BA/10K-2-D-12"-BB2 Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-12"-BB2 | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-12"-BB2
$15.51 each
View Details BAPI BA/10K-2-D-8"-NB-10' Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-8"-NB-10' | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-8"-NB-10'
$12.16 each
View Details BAPI BA/10K-2-D-4"-BBX Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-4"-BBX | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-4"-BBX
$10.48 each
View Details BAPI BA/10K-2-D-4"-BB2 Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-4"-BB2 | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-4"-BB2
$15.51 each
View Details BAPI BA/10K-2-D-18" Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-18" | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-18"
$10.48 each
View Details BAPI BA/10K-2-D-12"-BBX Duct Temperature Sensor | Midwest Supply Us
BA/10K-2-D-12"-BBX | Duct Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-D-12"-BBX
$10.48 each
View Details BAPI BA/NO2-D-BB NO2 - Duct and Rough Service Nitrogen Dioxide Sensor - Duct Unit with Aspiration Tube | Midwest Supply Us
BA/NO2-D-BB | NO2 - Duct and Rough Service Nitrogen Dioxide Sensor - Duct Unit with Aspiration Tube | BAPI
Brand: BAPI
SKU: BA/NO2-D-BB
$461.18 each
View Details BAPI BA/CO-D-BB CO - Duct and Rough Service Carbon Monoxide Sensor - Duct Unit with Aspiration Tube | Midwest Supply Us
BA/CO-D-BB | CO - Duct and Rough Service Carbon Monoxide Sensor - Duct Unit with Aspiration Tube | BAPI
Brand: BAPI
SKU: BA/CO-D-BB
$348.82 each
View Details Siemens QFM3160 Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Midwest Supply Us
QFM3160 | Duct RH and Temp Sensor, 2 percent (high) accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM3160
$252.36 each
View Details Siemens QFM2101 Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Midwest Supply Us
QFM2101 | Duct Relative Humidity Temperature Sensor, 5 percent accuracy, 4-20 mA | Siemens
Brand: Siemens
SKU: QFM2101
$160.20 each
View Details
QAM2030.010 | Duct Point Temperature Sensor, 10K Ohm NTC Type 2, 4-Inch | Siemens
Brand: Siemens
SKU: QAM2030.010
$23.58 each
View Details Siemens 535-490-18 Rigid Averaging Duct Sensor, 20 to 120 Deg F, 18-Inch | Midwest Supply Us
535-490-18 | Rigid Averaging Duct Sensor, 20 to 120 Deg F, 18-Inch | Siemens
Brand: Siemens
SKU: 535-490-18
$97.17 each
Communication
Element Type
Humidity Output
Sensing Element
Sensor
Sensor Configuration
Sensor Housing
Sensor Length
Sensor Wire Length
Temp & Humidity Signals
Temperature Sensor
Voltage
°F or °C Display
Committed to customer satisfaction
as experts in Duct Sensors
(847) 773-1023

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Norgas Controls NGR02-BBA GAS REGULATOR | 3/4" NPT | 1/4" Orifice | GREEN SPRING 6.5"-16" WC| | Midwest Supply Us
NGR02-BBA | Gas Regulator | 3/4" NPT | 1/4" Orifice | Green Spring 6.5"-16"wc | Norgas Controls
Brand: Norgas Controls
SKU: NGR02-BBA
$82.63
BAPI BA/10K-2-H210-D-BBX Duct Humidity (%RH) Sensor with Optional Temperature Sensor | Midwest Supply Us
BA/10K-2-H210-D-BBX | Duct Humidity (%RH) Sensor with Optional Temperature Sensor | BAPI
Brand: BAPI
SKU: BA/10K-2-H210-D-BBX
$108.17
Norgas Controls N5D-1500-S GAS REGULATOR, 1-1/2" NPT, SILVER SPRING 7-11"WC, 2 PSI CSA | Midwest Supply Us
N5D-1500-S | GAS REGULATOR, 1-1/2" NPT, SILVER SPRING 7-11"WC, 2 PSI CSA | Norgas Controls
Brand: Norgas Controls
SKU: N5D-1500-S
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BAPI ZPS-ACC04-1 Room Pressure Pickup Ports with Temperature Sensor | Midwest Supply Us
ZPS-ACC04-1 | Room Pressure Pickup Ports with Temperature Sensor | BAPI
Brand: BAPI
SKU: ZPS-ACC04-1
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Belimo B214 Characterized Control Valve (CCV), 1/2", 2-way | Midwest Supply Us
B214 | Characterized Control Valve (CCV), 1/2", 2-way | Belimo
Brand: Belimo
SKU: B214
$90.90
Everflow EPRC1501-NL EVERFLOW 1-1/2" X 1" PEX BARB RED. COUPLING LEAD FREE | Midwest Supply Us
EPRC1501-NL | EVERFLOW 1-1/2" X 1" PEX BARB RED. COUPLING LEAD FREE | Everflow
Brand: Everflow
SKU: EPRC1501-NL
$9.81
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