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.
Filter
View Details ACI A/CP-DO-6" 10K ohm Type II | Duct Temperature Sensor | Sensor Length: 6 inch | Midwest Supply Us
A/CP-DO-6" | 10K ohm Type II | Duct Temperature Sensor | Sensor Length: 6 inch | ACI
Brand: ACI
SKU: A/CP-DO-6"
$14.86 each
View Details Siemens QFA32SS.FWSN Humidity&Temp Room Unit, 2%, selectable RH&T, Display, Temp Setpt, Override | Midwest Supply Us
QFA32SS.FWSN | Humidity&Temp Room Unit, 2%, selectable RH&T, Display, Temp Setpt, Override | Siemens
Brand: Siemens
SKU: QFA32SS.FWSN
$244.52 each
View Details Siemens QFA3212.FWNN ROOM RHT 1K OHM PT(385) FULL HMI NO LOGO | Midwest Supply Us
QFA3212.FWNN | ROOM RHT 1K OHM PT(385) FULL HMI NO LOGO | Siemens
Brand: Siemens
SKU: QFA3212.FWNN
$224.98 each
View Details Siemens 533-376-18 Duct Point Temperature Sensor, Platinum, 20 to 120 Deg F, 18-Inch | Midwest Supply Us
533-376-18 | Duct Point Temperature Sensor, Platinum, 20 to 120 Deg F, 18-Inch | Siemens
Brand: Siemens
SKU: 533-376-18
$86.18 each
View Details Siemens QFM81.2 Duct Hygrostat with External Setpoint, 30 - 90% RH | Midwest Supply Us
QFM81.2 | Duct Hygrostat with External Setpoint, 30 - 90% RH | Siemens
Brand: Siemens
SKU: QFM81.2
$160.63 each
View Details Siemens SAS81.33U Powermite 599 MT Series SAS Electronic Valve Actuator, SR, 24V, Float Control | Midwest Supply Us
SAS81.33U | Powermite 599 MT Series SAS Electronic Valve Actuator, SR, 24V, Float Control | Siemens
Brand: Siemens
SKU: SAS81.33U
$305.95 each
View Details Veris HD2XMSTH2 RH Duct | 2% | 4-20mA | Temp | 10k T3 | 2PT CAL | Midwest Supply Us
HD2XMSTH2 | RH Duct | 2% | 4-20mA | Temp | 10k T3 | 2PT CAL | Veris
Brand: Veris
SKU: HD2XMSTH2
$244.88 each
View Details Veris HD2XVSTH RH Duct | 2% | 5/10VDC | Temp | 10k T3 | Midwest Supply Us
HD2XVSTH | RH Duct | 2% | 5/10VDC | Temp | 10k T3 | Veris (OBSOLETE)
Brand: Veris
SKU: HD2XVSTH
$207.88 each
View Details
View Details Siemens 544-339-4 Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 4-Inch | Midwest Supply Us
544-339-4 | Duct Point Sensor, 1K Ohm Platinum (375 Alpha), 4-Inch | Siemens
Brand: Siemens
SKU: 544-339-4
$39.55 each
View Details ACI A/CP-DO-8" 10K ohm Type II | Duct Temperature Sensor | Sensor Length: 8 inch | Midwest Supply Us
A/CP-DO-8" | 10K ohm Type II | Duct Temperature Sensor | Sensor Length: 8 inch | ACI
Brand: ACI
SKU: A/CP-DO-8"
$14.86 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 ACI A/1K-2W-D-8"-PB RTD 1000 ohm (2 wire) | Duct Temperature Sensor | Sensor Length: 8 inch | Plastic Box Plain Housing Enclosure Box | Midwest Supply Us
A/1K-2W-D-8"-PB | RTD 1000 ohm (2 wire) | Duct Temperature Sensor | Sensor Length: 8 inch | Plastic Box Plain Housing Enclosure Box | ACI
Brand: ACI
SKU: A/1K-2W-D-8"-PB
$23.20 each
View Details ACI A/1K-2W-DO-6" RTD 1000 ohm (2 wire) | Duct Temperature Sensor | Sensor Length: 6 inch | Midwest Supply Us
A/1K-2W-DO-6" | RTD 1000 ohm (2 wire) | Duct Temperature Sensor | Sensor Length: 6 inch | ACI
Brand: ACI
SKU: A/1K-2W-DO-6"
$22.84 each
View Details Siemens QFM3101 Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Midwest Supply Us
QFM3101 | Duct Relative Humidity Sensor, 2 percent accuracy, 4-20 mA | Siemens
Brand: Siemens
SKU: QFM3101
$228.70 each
View Details Siemens QFM2160U Duct RH and Temp Sensor, 5 percent accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Midwest Supply Us
QFM2160U | Duct RH and Temp Sensor, 5 percent accuracy, RH: 0-10 Vdc, T: 0-10 Vdc | Siemens
Brand: Siemens
SKU: QFM2160U
$184.41 each
View Details Siemens QVM62.1 Air Velocity Sensor, 0 to 10 Vdc | Midwest Supply Us
QVM62.1 | Air Velocity Sensor, 0 to 10 Vdc | Siemens
Brand: Siemens
SKU: QVM62.1
$193.86 each
View Details ACI A/RH1-D 1% Accuracy RH Humidity Sensor | Duct Humidity Sensor | Midwest Supply Us
A/RH1-D | 1% Accuracy RH Humidity Sensor | Duct Humidity Sensor | ACI
Brand: ACI
SKU: A/RH1-D
$327.05 each
View Details Belimo 22DTM-56 Duct CO2+Temp+Hum Sensor BAC | Midwest Supply Us
22DTM-56 | Duct CO2+Temp+Hum Sensor BAC | Belimo
Brand: Belimo
SKU: 22DTM-56
$562.05 each
View Details Belimo 22DTM-5106 Duct CO2+Temp+Hum Sensor LCD V | Midwest Supply Us
22DTM-5106 | Duct CO2+Temp+Hum Sensor LCD V | Belimo
Brand: Belimo
SKU: 22DTM-5106
$640.35 each
View Details Belimo 22DTM-51 Duct CO2+Temp+Hum Sensor V | Midwest Supply Us
22DTM-51 | Duct CO2+Temp+Hum Sensor V | Belimo
Brand: Belimo
SKU: 22DTM-51
$548.55 each
View Details Belimo 22DTM-16 Duct CO2+Temp+Hum Sensor BAC | Midwest Supply Us
22DTM-16 | Duct CO2+Temp+Hum Sensor BAC | Belimo
Brand: Belimo
SKU: 22DTM-16
$562.05 each
View Details Belimo 22DTM-1106 Duct CO2+Temp+Hum Sensor V | Midwest Supply Us
22DTM-1106 | Duct CO2+Temp+Hum Sensor V | Belimo
Brand: Belimo
SKU: 22DTM-1106
$640.35 each
View Details Belimo 22DTM-11 Duct CO2+Temp+Hum Sensor V+LCD Display | Midwest Supply Us
22DTM-11 | Duct CO2+Temp+Hum Sensor V+LCD Display | Belimo
Brand: Belimo
SKU: 22DTM-11
$548.55 each
View Details Belimo 22DTH-56M Duct Temp+Hum Sensor BAC | Midwest Supply Us
22DTH-56M | Duct Temp+Hum Sensor BAC | Belimo
Brand: Belimo
SKU: 22DTH-56M
$255.60 each
Communication
Dimension Depth
Dimension Height
Dimension Probe Diameter
Dimension Probe Length
Dimension Width
Element Type
Enclosure Material
Humidity Output
Measurement Type
Mounting
Operating Temperature
Output Specifications
Outputs
Range
Sensing Element
Sensor
Sensor Configuration
Sensor Housing
Sensor Length
Sensor Wire Length
Temp & Humidity Signals
Temperature Calibration Certificate
Temperature Measurement Accuracy
Temperature Measurement Range
Temperature Sensor
Temperature Sensor Type
Voltage
Warranty
°F or °C Display
Committed to customer satisfaction
as experts in Duct Sensors
(847) 773-1023

Recently Viewed

Popular Products

View all →
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
$86.98
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 7-11"WC CSA | Midwest Supply Us
N5D-1500-S | GAS REGULATOR 1-1/2" NPT 7-11"WC CSA | Norgas Controls
Brand: Norgas Controls
SKU: N5D-1500-S
View Details
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
$16.77
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
$83.70
Everflow EPRC1501-NL 1-1/2" X 1" F1807 PEX Reducing Coupling Lead Free | Midwest Supply Us
EPRC1501-NL | 1-1/2" X 1" F1807 PEX Reducing Coupling Lead Free | Everflow
Brand: Everflow
SKU: EPRC1501-NL
$12.38
Sign in to your account
Show

Forgot password?

Don’t have an account?
Create account
Register New Account
Show
Show

Sign In

Your Cart
items in the Cart
The product has been added to cart.
There are items in your cart.

Total:

View Cart
Continue Shopping