Air quality sensors Carbon dioxide transmitters Type

Indoor air quality directly affects building occupant health, comfort and productivity. Blackhawk Supply provides commercial-grade air quality sensors for buildings to deliver real-time data on particulate matter, CO2, VOC levels and other critical air quality parameters. These sensors integrate seamlessly with building automation systems to enable responsive HVAC adjustments that maintain optimal indoor environments.

All Types

Image for CO2 Sensors

CO2 Sensors

Image for Duct CO2 Sensors

Duct CO2 Sensors

Image for Particulate Matter Sensors

Particulate Matter Sensors

Image for VOC Sensors

Sort by

Dwyer CDT-2N4B-LCD Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | 10K Type II Thermistor Temperature Output | North American Housing | LCD Display. | Blackhawk Supply

CDT-2N4B-LCD | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | 10K Type II Thermistor Temperature Output | North American Housing | LCD Display. | Dwyer

Brand: Dwyer

SKU: CDT-2N4B-LCD

Dwyer CDTR-5D404 Carbon Dioxide/RH/Temperature Transmitter | 5000 ppm CO2 range | duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & no temperature output. | Blackhawk Supply

CDTR-5D404 | Carbon Dioxide / RH / Temperature Transmitter | 5000 ppm CO2 range | duct mount | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output | RH outputs & no temperature output. | Dwyer

Brand: Dwyer

SKU: CDTR-5D404

Dwyer CDT-2N4D-LCD Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | Pt100 RTD Temperature Output | North American Housing | LCD Display. | Blackhawk Supply

CDT-2N4D-LCD | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | Pt100 RTD Temperature Output | North American Housing | LCD Display. | Dwyer

Brand: Dwyer

SKU: CDT-2N4D-LCD

Dwyer CDTV-2D4F4 Duct VOC & CO2 transmitter | universal analog outputs | 2000PPM CO2 | 20K Ohm temperature sensor | Blackhawk Supply

CDTV-2D4F4 | Duct VOC & CO2 transmitter | universal analog outputs | 2000PPM CO2 | 20K Ohm temperature sensor | Dwyer

Brand: Dwyer

SKU: CDTV-2D4F4

Dwyer CDT-2N44 Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | North American Housing. | Blackhawk Supply

CDT-2N44 | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | North American Housing. | Dwyer

Brand: Dwyer

SKU: CDT-2N44

Dwyer CDTV-2D4E4 Duct VOC & CO2 transmitter | universal analog outputs | 2000PPM CO2 | PT1K Ohm RTD temperature sensor | Blackhawk Supply

CDTV-2D4E4 | Duct VOC & CO2 transmitter | universal analog outputs | 2000PPM CO2 | PT1K Ohm RTD temperature sensor | Dwyer

Brand: Dwyer

SKU: CDTV-2D4E4

Dwyer CDTV-2D4B4 Duct VOC & CO2 transmitter | universal analog outputs | 2000PPM CO2 | 10K Ohm Type II temperature sensor | Blackhawk Supply

CDTV-2D4B4 | Duct VOC & CO2 transmitter | universal analog outputs | 2000PPM CO2 | 10K Ohm Type II temperature sensor | Dwyer

Brand: Dwyer

SKU: CDTV-2D4B4

Dwyer CDTV-2N4A4 Wall Voc & CO2 transmitter | universal analog outputs | 2000 ppm CO2 | 10K Ohm Type III temperature sensor | Blackhawk Supply

CDTV-2N4A4 | Wall Voc & CO2 transmitter | universal analog outputs | 2000 ppm CO2 | 10K Ohm Type III temperature sensor | Dwyer

Brand: Dwyer

SKU: CDTV-2N4A4

Dwyer CDT-2D4F Carbon Dioxide Transmitter | duct mount | 2000 ppm | CO2 transmitter with current/voltage CO2 outputs and 20K Ohm thermistor temperature output | Blackhawk Supply

CDT-2D4F | Carbon Dioxide Transmitter | duct mount | 2000 ppm | CO2 transmitter with current / voltage CO2 outputs and 20K Ohm thermistor temperature output | Dwyer

Brand: Dwyer

SKU: CDT-2D4F

Dwyer CDTR-2N4A4 Carbon Dioxide/Temperature/Humidity | Wall Mount | universal current/voltage output | 10 kΩ Type III Thermistor Temperature Output | North American Housing. | Blackhawk Supply

CDTR-2N4A4 | Carbon Dioxide / Temperature / Humidity | Wall Mount | universal current / voltage output | 10 kΩ Type III Thermistor Temperature Output | North American Housing. | Dwyer

Brand: Dwyer

SKU: CDTR-2N4A4

Dwyer CDTR-2D4A4 Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & 10 kΩ Type 3 thermistor temperature output. | Blackhawk Supply

CDTR-2D4A4 | Carbon Dioxide / RH / Temperature Transmitter | 2000 ppm CO2 range | duct mount | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output | RH outputs & 10 kΩ Type 3 thermistor temperature output. | Dwyer

Brand: Dwyer

SKU: CDTR-2D4A4

Dwyer CDTV-2N4B4-LCD Wall Voc & CO2 transmitter | universal analog outputs | 2000 ppm CO2 | 10K Ohm Type II temperature sensor with LCD display | Blackhawk Supply

CDTV-2N4B4-LCD | Wall Voc & CO2 transmitter | universal analog outputs | 2000 ppm CO2 | 10K Ohm Type II temperature sensor with LCD display | Dwyer

Brand: Dwyer

SKU: CDTV-2N4B4-LCD

Dwyer CDT-2N4D Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | Pt100 RTD Temperature Output | North American Housing. | Blackhawk Supply

CDT-2N4D | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | Pt100 RTD Temperature Output | North American Housing. | Dwyer

Brand: Dwyer

SKU: CDT-2N4D

Dwyer CDT-2N44-LCD Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | North American Housing | LCD Display. | Blackhawk Supply

CDT-2N44-LCD | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | North American Housing | LCD Display. | Dwyer

Brand: Dwyer

SKU: CDT-2N44-LCD

Dwyer CDTR-2N4B4 Carbon Dioxide/Temperature/Humidity | Wall Mount | universal current/voltage output | 10 kΩ Type II Thermistor Temperature Output | North American Housing. | Blackhawk Supply

CDTR-2N4B4 | Carbon Dioxide / Temperature / Humidity | Wall Mount | universal current / voltage output | 10 kΩ Type II Thermistor Temperature Output | North American Housing. | Dwyer

Brand: Dwyer

SKU: CDTR-2N4B4

Dwyer CDWP-05W-C1 Industrial CO2 Transmitter | 0-5000 PPM range | wall mount | with 1-6mm cable gland | Blackhawk Supply

CDWP-05W-C1 | Industrial CO2 Transmitter | 0-5000 PPM range | wall mount | with 1-6mm cable gland | Dwyer

Brand: Dwyer

SKU: CDWP-05W-C1

Dwyer CDT-2N4A Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | 10K Type III Thermistor Temperature Output | North American Housing. | Blackhawk Supply

CDT-2N4A | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | 10K Type III Thermistor Temperature Output | North American Housing. | Dwyer

Brand: Dwyer

SKU: CDT-2N4A

Dwyer CDT-2D44 Carbon Dioxide Transmitter | duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output & temperature output. | Blackhawk Supply

CDT-2D44 | Carbon Dioxide Transmitter | duct mount | 2000 ppm CO2 range | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output & temperature output. | Dwyer

Brand: Dwyer

SKU: CDT-2D44

Dwyer CDWP-10W-C5 Industrial CO2 Transmitter | 0-10 | 000 PPM range | wall mount | with 5-8mm cable gland | Blackhawk Supply

CDWP-10W-C5 | Industrial CO2 Transmitter | 0-10 | 000 PPM range | wall mount | with 5-8mm cable gland | Dwyer

Brand: Dwyer

SKU: CDWP-10W-C5

Dwyer CDT-2N4A-LCD Carbon Dioxide/Temperature | Wall Mount | universal current/voltage output | 10K Type III Thermistor Temperature Output | North American Housing | LCD Display. | Blackhawk Supply

CDT-2N4A-LCD | Carbon Dioxide / Temperature | Wall Mount | universal current / voltage output | 10K Type III Thermistor Temperature Output | North American Housing | LCD Display. | Dwyer

Brand: Dwyer

SKU: CDT-2N4A-LCD

Dwyer CDTR-2D4E4 Carbon Dioxide/RH/Temperature Transmitter | 2000 ppm CO2 range | duct mount | 4 to 20 mA/0 to (5 or 10) VDC CO2 output | RH outputs & Pt1000 Ω RTD temperature output. | Blackhawk Supply

CDTR-2D4E4 | Carbon Dioxide / RH / Temperature Transmitter | 2000 ppm CO2 range | duct mount | 4 to 20 mA / 0 to (5 or 10) VDC CO2 output | RH outputs & Pt1000 Ω RTD temperature output. | Dwyer

Brand: Dwyer

SKU: CDTR-2D4E4

Dwyer CDTR-2N4F4-LCD Carbon Dioxide/Temperature/Humidity | Wall Mount | universal current/voltage output | 20 kΩ Thermistor Temperature Output | North American Housing | LCD Display. | Blackhawk Supply

CDTR-2N4F4-LCD | Carbon Dioxide / Temperature / Humidity | Wall Mount | universal current / voltage output | 20 kΩ Thermistor Temperature Output | North American Housing | LCD Display. | Dwyer

Brand: Dwyer

SKU: CDTR-2N4F4-LCD

Dwyer CDTR-2N4D4 Carbon Dioxide/Temperature/Humidity | Wall Mount | universal current/voltage output | Pt100 Ω RTD Temperature Output | North American Housing. | Blackhawk Supply

CDTR-2N4D4 | Carbon Dioxide / Temperature / Humidity | Wall Mount | universal current / voltage output | Pt100 Ω RTD Temperature Output | North American Housing. | Dwyer

Brand: Dwyer

SKU: CDTR-2N4D4

Dwyer CDWP-02W-C5 Industrial CO2 Transmitter | 0-2000 PPM range | wall mount | with 5-8mm cable gland | Blackhawk Supply

CDWP-02W-C5 | Industrial CO2 Transmitter | 0-2000 PPM range | wall mount | with 5-8mm cable gland | Dwyer

Brand: Dwyer

SKU: CDWP-02W-C5

123

Committed to customer satisfaction

as experts in Air Quality Sensors

Recently Viewed

Popular Products

View all →

Schneider Electric MG350V-24F SmartX, Globe Valve Actuator, floating, non-spring return, 24 Vac/Vdc, 78 lbf, LED status indicator, NEMA 2 | Blackhawk Supply

MG350V-24F | SmartX, Globe Valve Actuator, floating, non-spring return, 24 Vac/Vdc, 78 lbf, LED status indicator, NEMA 2 | Schneider Electric

Brand: Schneider Electric

SKU: MG350V-24F

Veris PWLX04S Pressure | Wet | Nema 4 | LCD | 0-100PSID | Blackhawk Supply

PWLX04S | Pressure | Wet | Nema 4 | LCD | 0-100PSID | Veris

Brand: Veris

SKU: PWLX04S

Neptronic EHS45-600-10 1 Phase 45 Amps Multi-Signal Control | [NFEHS45-600-10] | Blackhawk Supply

EHS45-600-10 | 1 Phase 45 Amps Multi-Signal Control | [NFEHS45-600-10] | Neptronic

Brand: Neptronic

SKU: EHS45-600-10

Veris PX3ULX05 Pressure,Dry,Univ,LCD | Blackhawk Supply

PX3ULX05 | Pressure, Dry, Univ, LCD | Veris

Brand: Veris

SKU: PX3ULX05

Veris PWLX05S Pressure | Wet | Nema 4 | LCD | 0-250PSID | Blackhawk Supply

PWLX05S | Pressure | Wet | Nema 4 | LCD | 0-250PSID | Veris

Brand: Veris

SKU: PWLX05S

Belimo FSNF120 US Fire & Smoke Actuator | 70 in-lb | Spg Rtn | 120V | On/Off | 1m Cable | Blackhawk Supply

FSNF120 US | Fire & Smoke Actuator | 70 in-lb | Spg Rtn | 120V | On/Off | 1m Cable | Belimo

Brand: Belimo

SKU: FSNF120 US

Belimo B220+LF120 US CCV | 0.75" | 2 Way | 14 Cv | w/ Spg Rtn | 120V | On/Off | Blackhawk Supply

B220+LF120 US | CCV | 0.75" | 2 Way | 14 Cv | w/ Spg Rtn | 120V | On/Off | Belimo

Brand: Belimo

SKU: B220+LF120 US

Siemens SKD62U Flowrite Electro-Hydraulic Actuator, 24Vac, Proportional, SR, 3/4" Stroke | Blackhawk Supply

SKD62U | Flowrite Electro-Hydraulic Actuator, 24Vac, Proportional, SR, 3/4" Stroke | Siemens

Brand: Siemens

SKU: SKD62U

The product has been added to cart.