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  • Water
    • Accessories
    • DO Meters
    • Moisture Meters
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12 $2,668.31
    • × Desktop LED Light for Polariscope/Darkfield LoupeDesktop LED Light for Polariscope/Darkfield Loupe 1 × $66.43
    • × Waterproof USB Datalogger for Humidity, Temperature, and PressureWaterproof USB Datalogger for Humidity, Temperature, and Pressure 1 × $217.60
    • × Paint Thickness Gauge for Car Coating with Digital DisplayPaint Thickness Gauge for Car Coating with Digital Display 1 × $336.26
    • × Soil pH and Moisture Meter with 2-in-1 Testing (308mm Long Waterproof)Soil pH and Moisture Meter with 2-in-1 Testing (308mm Long Waterproof) 1 × $77.52
    • × Gun Type Industrial Non-contract IR Infrared Laser ThermometerGun Type Industrial Non-contract IR Infrared Laser Thermometer 1 × $326.84
    • × 3-in-1 pH, ORP, and Temperature Combo Meter Tester with Pen Type and ATC Compensation With Extra Electrode3-in-1 pH, ORP, and Temperature Combo Meter Tester with Pen Type and ATC Compensation With Extra Electrode 1 × $168.10
    • × Advanced Fish Finder with Depth Sounder Transducer (328ft/100m)Advanced Fish Finder with Depth Sounder Transducer (328ft/100m) 1 × $294.23
    • × Smart Indoor Air Quality Monitor, CO2, TVOC, Humidity, TemperatureSmart Indoor Air Quality Monitor, CO2, TVOC, Humidity, Temperature 1 × $279.58
    • × Paint Coating Thickness Meter Gauge w/ F ProbePaint Coating Thickness Meter Gauge w/ F Probe 1 × $289.41
    • × Moissanite Tester for Jewelry and Loose StonesMoissanite Tester for Jewelry and Loose Stones 1 × $130.89
    • × Professional LAN Cable Tester with Wire Stripper and Electric Wiring ToolsProfessional LAN Cable Tester with Wire Stripper and Electric Wiring Tools 1 × $187.58
    • × Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay FunctionDigital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 1 × $293.87

    Subtotal: $2,668.31

    View cartCheckout

  • Water
    • Accessories
    • DO Meters
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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
    Add to cart
  • 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
    Add to cart
  • 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
    Add to cart
  • 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
    Add to cart
  • 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
    Add to cart
  • 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
    Add to cart
  • 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

Save $14.17
-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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  • Terms & Conditions
  • 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
Desktop LED Light for Polariscope/Darkfield Loupe
Desktop LED Light for Polariscope/Darkfield Loupe
Price: $66.43
- +
$66.43
Waterproof USB Datalogger for Humidity, Temperature, and Pressure
Waterproof USB Datalogger for Humidity, Temperature, and Pressure
Price: $217.60
- +
$217.60
Paint Thickness Gauge for Car Coating with Digital Display
Paint Thickness Gauge for Car Coating with Digital Display
Price: $336.26
- +
$336.26
Soil pH and Moisture Meter with 2-in-1 Testing (308mm Long Waterproof)
Soil pH and Moisture Meter with 2-in-1 Testing (308mm Long Waterproof)
Price: $77.52
- +
$77.52
Gun Type Industrial Non-contract IR Infrared Laser Thermometer
Gun Type Industrial Non-contract IR Infrared Laser Thermometer
Price: $326.84
- +
$326.84
3-in-1 pH, ORP, and Temperature Combo Meter Tester with Pen Type and ATC Compensation With Extra Electrode
3-in-1 pH, ORP, and Temperature Combo Meter Tester with Pen Type and ATC Compensation With Extra Electrode
Price: $168.10
- +
$168.10
Advanced Fish Finder with Depth Sounder Transducer (328ft/100m)
Advanced Fish Finder with Depth Sounder Transducer (328ft/100m)
Price: $294.23
- +
$294.23
Smart Indoor Air Quality Monitor, CO2, TVOC, Humidity, Temperature
Smart Indoor Air Quality Monitor, CO2, TVOC, Humidity, Temperature
Price: $279.58
- +
$279.58
Paint Coating Thickness Meter Gauge w/ F Probe
Paint Coating Thickness Meter Gauge w/ F Probe
Price: $289.41
- +
$289.41
Moissanite Tester for Jewelry and Loose Stones
Moissanite Tester for Jewelry and Loose Stones
Price: $130.89
- +
$130.89
Professional LAN Cable Tester with Wire Stripper and Electric Wiring Tools
Professional LAN Cable Tester with Wire Stripper and Electric Wiring Tools
Price: $187.58
- +
$187.58
Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function
Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function
Price: $293.87
- +
$293.87
Subtotal $2,668.31
Shipping, taxes, and discounts calculated at checkout.
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