Learn More
About Carbon Dioxide (CO2) Detectors

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Honeywell IAQPoint2 Indoor Air Quality Monitor
Touchscreen, triple monitoring (CO2 or VOCs, temperature and humidity)
Starting at
$215.00
In Stock
Extech CO100 CO2 Monitor
Measures carbon dioxide, Air temperature and humidity with user programmable visual and audible alarm
FREE Gift with Extech purchases over $100
$229.99
Telaire Ventostat Series CO2 Monitor
Commercial grade Carbon dioxide detectors for ventilation control and air quality applications
Starting at
$319.73
$255.78
In Stock
Vaisala GMT220 Series CO2 Transmitters
Measures carbon dioxide in harsh and humid environments with IP65 housing
Starting at
$935.00
Amprobe CO2-100 CO2 Monitor
Low drift, hand held carbon dioxide meter for checking indoor air quality
$349.95
$297.46
In Stock
Vaisala GM70 CO2 Monitor
Hand-held carbon dioxide meter with option of diffusion or pump aspiration sampling methods
Starting at
$1,753.00
Telaire T7001 CO2 Monitor
Part of the 7000 series, handheld indoor air quality testing for carbon dioxide, temperature and ventilation rates
Starting at
$591.75
$473.40
Testo 535 Ambient CO2 Monitor
Highly accurate 2 channel infrared sensor carbon dioxide monitor with a 0 to 9,999 ppm measuring range
$543.00
$515.85
In Stock
TSI Alnor IAQ-CALC 7515 CO2 Monitor
Cost-effective handheld meter for carbon dioxide (CO2) measurements
$620.00
Vaisala GMP343 CO2 Monitor Probe
Available as an open-path diffusion-aspirated model and as a flow-through model
Starting at
$2,791.00
Vaisala GMD20 Series CO2 Transmitters
Duct mounted carbon dioxide transmitters designed for demand controlled ventilation applications
Starting at
$312.00
Amprobe CO2-200 CO2 Monitor
Low drift, wall mounted carbon dioxide meter for monitoring indoor air quality
$299.95
$254.96
Extech CO210 CO2 Monitor & Data Logger
Air Quality monitor data logs up to 5333 points for each parameter, carbon dioxide, temp & humidity
FREE Gift with Extech purchases over $100
$299.99
Telaire T8000-R Series CO2 Monitor
Low cost, high performing CO2 transmitter with relay for the building controls and indoor growers markets
Starting at
$355.25
$284.20
In Stock
Telaire Ventostat T8041 CO2 Transmitter
Duct mount carbon dioxide sensor and transmitter
$241.57
$193.26
In Stock
Telaire T5100 CO2 Transmitter
Low-cost, wall mount CO2 transmitter for demand-controlled ventilation applications
Starting at
$162.40
$129.92
In Stock
Dwyer 1205B CO/CO2 Gas Analyzer
Handheld CO/CO2 gas analyzer with sampling probe and hose for indoor air quality applications
$1,049.00
Telaire Ventostat T8100NS / T8100NSP CO2 Sensor
Commercial grade CO2 sensor with night setback override and optional slide potentiometer
Starting at
$324.80
$259.84
In Stock
Telaire T5100-LED CO2 Transmitter
Low-cost, wall mount CO2 transmitter with color LEDs to indicate CO2 levels
Starting at
$274.05
$219.24
In Stock
Rotronic CF5 Series CO2 / Temperature Transmitters
Measurement ranges 0 to 3,000 ppm carbon dioxide and 30 to 120°F (0 to 50°C) temperature, accuracy of ±30 ppm
Starting at
$420.00
Vaisala GMW90 Series CO2 Sensors
Carbon dioxide / temperature sensors with optional humidity measurement for demand controlled ventilation systems
Starting at
$396.00
Extech CO220 Air Quality CO2 Monitor
Desktop Indoor Air Quality CO2 Monitor, maintenance free NDIR (non-dispersive infrared) CO2 sensor
FREE Gift with Extech purchases over $100
$229.99
Rotronic CF3 Series CO2 Transmitters
Accuracy ±30 ppm, 0 to 2,000 ppm carbon dioxide range, Non-Dispersive InfraRed (NDIR) with automatic calibration
Starting at
$315.00
Vaisala GMW80 Series CO2 Transmitters
Wall-mount transmitters designed to fulfill the needs for CO2 measurements in standard demand-controlled ventilation applications
Starting at
$169.00
In Stock
Rotronic CO2 Display
Wall-mounted or bench-top unit that simultaneously measures and records CO2, humidity and temperature
$695.00