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12 $2,045.18
    • × Battery Capacity Tester for Automobile and Workshop EquipmentBattery Capacity Tester for Automobile and Workshop Equipment 1 × $118.79
    • × Industrial Paint Coating Thickness Gauge w/F/NF Probes & Big LCDIndustrial Paint Coating Thickness Gauge w/F/NF Probes & Big LCD 1 × $308.12
    • × Soil pH & Moisture Tester with Long Electrode Probe, 295mmSoil pH & Moisture Tester with Long Electrode Probe, 295mm 1 × $133.85
    • × Industrial Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer & DataloggerIndustrial Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer & Datalogger 1 × $291.20
    • × Landtek Ultrasonic Transmitter, 40 KHz Frequency, PortableLandtek Ultrasonic Transmitter, 40 KHz Frequency, Portable 1 × $199.13
    • × Car Antifreeze System Tester for Ethylene Glycol 0-100%, Freezing Point -60 ~ 0°C, Battery AcidCar Antifreeze System Tester for Ethylene Glycol 0-100%, Freezing Point -60 ~ 0°C, Battery Acid 1 × $69.56
    • × Handheld Durable Small Diffraction Spectroscope (55mm)Handheld Durable Small Diffraction Spectroscope (55mm) 1 × $81.87
    • × Digital Indoor CO2 & Air Quality MeterDigital Indoor CO2 & Air Quality Meter 1 × $283.18
    • × Handheld Cable Tester for Ethernet and Telephone RJ45 RJ11Handheld Cable Tester for Ethernet and Telephone RJ45 RJ11 1 × $69.21
    • × Internet Network Cable Tester with Crimping Tool and AnalyzerInternet Network Cable Tester with Crimping Tool and Analyzer 1 × $89.09
    • × Digital 2 in 1 Laser Point Infrared Industrial Thermometer Thermal Leak Detector (IR) -50 to 500℃Digital 2 in 1 Laser Point Infrared Industrial Thermometer Thermal Leak Detector (IR) -50 to 500℃ 1 × $323.27
    • × CO2 Monitor for Indoor Air Quality with Temperature DisplayCO2 Monitor for Indoor Air Quality with Temperature Display 1 × $77.91

    Subtotal: $2,045.18

    View cartCheckout

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HomeAirCO2 Meters

CO2 Meters

Showing all 20 resultsSorted by price: low to high

  • Air, CO2 Meters, Instruments

    CO2 Monitor for Indoor Air Quality with Temperature Display

    -39% CO2 Monitor for Indoor Air Quality with Temperature Display
    Air, CO2 Meters, Instruments

    CO2 Monitor for Indoor Air Quality with Temperature Display

    0 out of 5
    (0)
    SKU: CO2-MON-TMP-IND
    $77.91 $127.53
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  • Air, CO2 Meters, Instruments

    Wall-Mount Indoor Air Quality Monitor with CO2 Detection

    -15% Wall-Mount Indoor Air Quality Monitor with CO2 Detection
    Air, CO2 Meters, Instruments

    Wall-Mount Indoor Air Quality Monitor with CO2 Detection

    0 out of 5
    (0)
    SKU: AIR-MON-WM-CO2
    $79.70 $93.87
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  • CO2 Meters

    Digital Indoor/Outdoor Rechargeable Air Quality & CO2 Monitor

    -42% Digital Indoor/Outdoor Rechargeable Air Quality & CO2 Monitor
    CO2 Meters

    Digital Indoor/Outdoor Rechargeable Air Quality & CO2 Monitor

    0 out of 5
    (0)
    SKU: 158
    $128.60 $222.57
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  • Air, Air Quality Meters, CO2 Meters, Gadgets, Instruments

    Smart WiFi CO2 Detector for Indoor Air Quality Monitoring

    -37% Smart WiFi CO2 Detector for Indoor Air Quality Monitoring
    Air, Air Quality Meters, CO2 Meters, Gadgets, Instruments

    Smart WiFi CO2 Detector for Indoor Air Quality Monitoring

    0 out of 5
    (0)
    SKU: AIR-MON-WIFI-CO2
    $136.03 $215.64
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  • Air, CO2 Meters, Instruments

    Carbon Dioxide CO2 Monitor (0-5000ppm, Large Colored LED)

    -30% Carbon Dioxide CO2 Monitor (0-5000ppm, Large Colored LED)
    Air, CO2 Meters, Instruments

    Carbon Dioxide CO2 Monitor (0-5000ppm, Large Colored LED)

    0 out of 5
    (0)
    SKU: CO2-MON-5000PPM-LED
    $171.27 $243.36
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  • Air, Automotive, CO2 Meters, Instruments

    Travel Carbon Monoxide Mini Detector for Vehicles

    -26% Travel Carbon Monoxide Mini Detector for Vehicles
    Air, Automotive, CO2 Meters, Instruments

    Travel Carbon Monoxide Mini Detector for Vehicles

    0 out of 5
    (0)
    SKU: CO-MON-TRV-VHCL
    $181.17 $244.35
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  • Air, Air Quality Meters, CO2 Meters, Instruments

    Digital CO2 Meter and Air Quality Controller

    -10% Digital CO2 Meter and Air Quality Controller
    Air, Air Quality Meters, CO2 Meters, Instruments

    Digital CO2 Meter and Air Quality Controller

    0 out of 5
    (0)
    SKU: MET-CO2-AIR
    $185.03 $206.53
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  • Air Quality Meters, CO2 Meters, Humidity Meters, Instruments, Temperature

    Smart CO2 Carbon Dioxide Indoor Air Quality Monitor with Temperature and Humidity

    -19% Smart CO2 Carbon Dioxide Indoor Air Quality Monitor with Temperature and Humidity
    Air Quality Meters, CO2 Meters, Humidity Meters, Instruments, Temperature

    Smart CO2 Carbon Dioxide Indoor Air Quality Monitor with Temperature and Humidity

    0 out of 5
    (0)
    SKU: AIR-MON-CO2-TMP-DGT
    $222.45 $275.04
    Add to cart
  • Air, Air Quality Meters, CO2 Meters, Instruments, Leak Detector

    Portable 4-Gas Detector for CO, H₂S, O₂, EX (LEL) Gas Detection

    -8% Portable 4-Gas Detector for CO, H₂S, O₂, EX (LEL) Gas Detection
    Air, Air Quality Meters, CO2 Meters, Instruments, Leak Detector

    Portable 4-Gas Detector for CO, H₂S, O₂, EX (LEL) Gas Detection

    0 out of 5
    (0)
    SKU: DET-4GAS-PORT-CO-H2S-O2
    $260.27 $283.95
    Add to cart
  • Air, CO2 Meters, Instruments

    CO2 Controller & Monitor, Auto Detect Day/Night for Carbon Dioxide

    -12% CO2 Controller & Monitor, Auto Detect Day/Night for Carbon Dioxide
    Air, CO2 Meters, Instruments

    CO2 Controller & Monitor, Auto Detect Day/Night for Carbon Dioxide

    0 out of 5
    (0)
    SKU: CO2-CON-MON-ADT-DN
    $278.09 $317.61
    Add to cart
  • Air Quality Meters, CO2 Meters, Humidity Meters, Instruments, Temperature

    Smart Indoor Air Quality Monitor, CO2, TVOC, Humidity, Temperature

    -6% Smart Indoor Air Quality Monitor, CO2, TVOC, Humidity, Temperature
    Air Quality Meters, CO2 Meters, Humidity Meters, Instruments, Temperature

    Smart Indoor Air Quality Monitor, CO2, TVOC, Humidity, Temperature

    0 out of 5
    (0)
    SKU: AIR-MON-SMART-IND-CO2
    $279.58 $298.80
    Add to cart
  • CO2 Meters

    Digital Indoor CO2 & Air Quality Meter

    -10% Digital Indoor CO2 & Air Quality Meter
    CO2 Meters

    Digital Indoor CO2 & Air Quality Meter

    0 out of 5
    (0)
    SKU: 155
    $283.18 $314.64
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  • CO2 Meters

    3 in 1 Factory Calibrated Desktop CO2/Air Quality Datalogger & Monitor w/ Temperature & Humidity Monitoring

    -10% 3 in 1 Factory Calibrated Desktop CO2/Air Quality Datalogger & Monitor w/ Temperature & Humidity Monitoring
    CO2 Meters

    3 in 1 Factory Calibrated Desktop CO2/Air Quality Datalogger & Monitor w/ Temperature & Humidity Monitoring

    0 out of 5
    (0)
    SKU: 163
    $284.07 $315.63
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  • CO2 Meters

    Industrial Wall Mountable CO2 & Air Quality Meter

    -10% Industrial Wall Mountable CO2 & Air Quality Meter
    CO2 Meters

    Industrial Wall Mountable CO2 & Air Quality Meter

    0 out of 5
    (0)
    SKU: 156
    $287.63 $319.59
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  • CO2 Meters

    Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function

    -10% Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function
    CO2 Meters

    Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function

    0 out of 5
    (0)
    SKU: 154
    $293.87 $326.52
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  • CO2 Meters

    Carbon Dioxide (CO2) RH & Temperature Real-Time Air Quality Monitor with PC Software Recording Analyzer

    -10% Carbon Dioxide (CO2) RH & Temperature Real-Time Air Quality Monitor with PC Software Recording Analyzer
    CO2 Meters

    Carbon Dioxide (CO2) RH & Temperature Real-Time Air Quality Monitor with PC Software Recording Analyzer

    0 out of 5
    (0)
    SKU: 157
    $294.76 $327.51
    Add to cart
  • CO2 Meters

    Professional Digital 3 in 1 CO2 & Air Tester Quality Monitor

    -10% Professional Digital 3 in 1 CO2 & Air Tester Quality Monitor
    CO2 Meters

    Professional Digital 3 in 1 CO2 & Air Tester Quality Monitor

    0 out of 5
    (0)
    SKU: 161
    $300.11 $333.45
    Add to cart
  • CO2 Meters

    Desktop Indoor Air Quality Monitor & CO2 Meter

    -15% Desktop Indoor Air Quality Monitor & CO2 Meter
    CO2 Meters

    Desktop Indoor Air Quality Monitor & CO2 Meter

    0 out of 5
    (0)
    SKU: 162
    $326.60 $385.92
    Add to cart
  • CO2 Meters

    Indoor Continuous Monitoring Air Quality & Carbon Dioxide Meter w/ PC Data Logging

    -10% Indoor Continuous Monitoring Air Quality & Carbon Dioxide Meter w/ PC Data Logging
    CO2 Meters

    Indoor Continuous Monitoring Air Quality & Carbon Dioxide Meter w/ PC Data Logging

    0 out of 5
    (0)
    SKU: 159
    $328.62 $365.13
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  • CO2 Meters

    Portable Industrial NDIR CO2 & Air Quality Monitor w/ Datalogger

    -2% Portable Industrial NDIR CO2 & Air Quality Monitor w/ Datalogger
    CO2 Meters

    Portable Industrial NDIR CO2 & Air Quality Monitor w/ Datalogger

    0 out of 5
    (0)
    SKU: 160
    $745.37 $762.12
    Add to cart

Showing all 20 resultsSorted by price: low to high

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Daily Special

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-12% 10x 18mm Handheld Darkfield Loupe with Flashlight

10x 18mm Handheld Darkfield Loupe with Flashlight

$106.43 $120.60
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Onsale Products

  • USB Cable with RS232 CD Software and 2.5mm Diameter Jack - For Landtek Water Activity Meter USB Cable with RS232 CD Software and 2.5mm Diameter Jack - For Landtek Water Activity Meter $78.56 $128.66
  • Gooseneck Fiber Optic Microscope Illuminator + Color Filters Gooseneck Fiber Optic Microscope Illuminator + Color Filters $536.78 $565.38
  • Auto Range Multifunction Multimeter with HD LCD Screen Digital Auto Range Multifunction Multimeter with HD LCD Screen Digital $69.29 $79.19

Top Rated Products

  • Digital Salinity Salt Meter Waterproof IP65 Digital Salinity Salt Meter Waterproof IP65
    Rated 5.00 out of 5
    $93.95 $145.35
  • Digital pH Meter Digital pH Meter
    Rated 5.00 out of 5
    $25.91 $30.82
  • 4 In 1 Digital Soil pH Meter 4 In 1 Digital Soil pH Meter
    Rated 5.00 out of 5
    $69.96 $76.35
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Recent reviews

  • 4 In 1 Digital Soil pH Meter 4 In 1 Digital Soil pH Meter
    Rated 5 out of 5
    by Andy M
  • Digital Salinity Salt Meter Waterproof IP65 Digital Salinity Salt Meter Waterproof IP65
    Rated 5 out of 5
    by Rob R
  • Digital pH Meter Digital pH Meter
    Rated 5 out of 5
    by Michael Y
Copyright 2023 Discount instruments | All prices are in AUD and include GST

Customer Service

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  • Privacy Policy
  • Contact Us

Recent reviews

  • 4 In 1 Digital Soil pH Meter 4 In 1 Digital Soil pH Meter
    Rated 5 out of 5
    by Andy M
  • Digital Salinity Salt Meter Waterproof IP65 Digital Salinity Salt Meter Waterproof IP65
    Rated 5 out of 5
    by Rob R
  • Digital pH Meter Digital pH Meter
    Rated 5 out of 5
    by Michael Y

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Discount Instruments
12
12
Your Cart
Battery Capacity Tester for Automobile and Workshop Equipment
Battery Capacity Tester for Automobile and Workshop Equipment
Price: $118.79
- +
$118.79
Industrial Paint Coating Thickness Gauge w/F/NF Probes & Big LCD
Industrial Paint Coating Thickness Gauge w/F/NF Probes & Big LCD
Price: $308.12
- +
$308.12
Soil pH & Moisture Tester with Long Electrode Probe, 295mm
Soil pH & Moisture Tester with Long Electrode Probe, 295mm
Price: $133.85
- +
$133.85
Industrial Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer & Datalogger
Industrial Digital 4-Channel K /J/ T / E/ R / S/ N Type Thermocouple Thermometer & Datalogger
Price: $291.20
- +
$291.20
Landtek Ultrasonic Transmitter, 40 KHz Frequency, Portable
Landtek Ultrasonic Transmitter, 40 KHz Frequency, Portable
Price: $199.13
- +
$199.13
Car Antifreeze System Tester for Ethylene Glycol 0-100%, Freezing Point -60 ~ 0°C, Battery Acid
Car Antifreeze System Tester for Ethylene Glycol 0-100%, Freezing Point -60 ~ 0°C, Battery Acid
Price: $69.56
- +
$69.56
Handheld Durable Small Diffraction Spectroscope (55mm)
Handheld Durable Small Diffraction Spectroscope (55mm)
Price: $81.87
- +
$81.87
Digital Indoor CO2 & Air Quality Meter
Digital Indoor CO2 & Air Quality Meter
Price: $283.18
- +
$283.18
Handheld Cable Tester for Ethernet and Telephone RJ45 RJ11
Handheld Cable Tester for Ethernet and Telephone RJ45 RJ11
Price: $69.21
- +
$69.21
Internet Network Cable Tester with Crimping Tool and Analyzer
Internet Network Cable Tester with Crimping Tool and Analyzer
Price: $89.09
- +
$89.09
Digital 2 in 1 Laser Point Infrared Industrial Thermometer Thermal Leak Detector (IR) -50 to 500℃
Digital 2 in 1 Laser Point Infrared Industrial Thermometer Thermal Leak Detector (IR) -50 to 500℃
Price: $323.27
- +
$323.27
CO2 Monitor for Indoor Air Quality with Temperature Display
CO2 Monitor for Indoor Air Quality with Temperature Display
Price: $77.91
- +
$77.91
Subtotal $2,045.18
Shipping, taxes, and discounts calculated at checkout.
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