GasLab Plus

measure CO2, CO, O2, PM2.5, PM10, temperature, humidity


  • Low cost, high quality, portable or mounted meter
  • Data logger and continuous monitoring
  • Long-life, built-in, lithium-ion battery
  • Easy to use and maintain

The GasLab Plus is a low cost, robust, flexible meter with data logging options. Measure carbon dioxide (CO2), temperature and relative humidity with the option to measure carbon monoxide (CO), oxygen (O2), and particulate matter PM2.5 and PM10.


model options

All options include a data logger, temperature and relative humidity sensor.

  • ESCM-501: CO2
  • ESCM-504: CO2 + CO + PM2.5 + PM10
  • ESCM-505: CO2 + CO + O2 + PM2.5 + PM10



The GasLab Plus series of detectors and meters are an ideal, low cost, easy to use option to monitor carbon dioxide (CO2) or a range of other gases.

The GasLab Plus either measures CO2 only, or there is a choice of other models to monitor additional gases including carbon monoxide (CO), oxygen (O2), ammonia (NH3), and particulate matter PM2.5 and PM10.

All options and models include a temperature and relative humidity sensor as well as a data logger.


easy to use and maintain

The GasLab Plus is the easiest meter you can possibly use - simply turn on and the meter automatically starts measuring!

The GasLab Plus meter is delivered to you with a calibration certificate and a long-life lithium-ion battery included.

The gas detectors within the GasLab Plus will last many years without re-calibration or maintenance. Or, Edaphic Scientific can service the meter, and re-calibrate the sensors, whenever you require.


  • Dual Beam NDIR technology to measure CO2 concentrations
  • Large LCD display for easy readability
  • Audible alarm
  • Data logging with 16GB SD card
  • Multiple connected units by RS-485 interface
  • LCD back light for easy readability by dark
  • Li-ion rechargeable batteries


  • Indoor air quality
  • Schools, offices and buildings
  • Food and beverage
  • Brewing
  • Agriculture
  • Poultry
  • Scientific
  • Medical
  • Safety, and many others.


feature specification
Carbon Dioxide (CO2) Detector
Measurement Range 0 to 1% | 0 to 9,999 ppm
Measurement Accuracy ±50 ppm or 5% of reading (whichever is greater)
Measurement Resolution 1 ppm
Carbon Monoxide (CO) Detector
Measurement Range 0 to 1,000 ppm
Measurement Accuracy ±5%
Measurement Resolution 1 ppm
Oxygen (O2) Detector
Measurement Range 0 to 25%
Measurement Accuracy <2% FS/0.1 mbar
Measurement Resolution 0.01%
Ammonia (NH3) Detector
Measurement Range 0 to 100ppm
Measurement Accuracy ±10%
Measurement Resolution 1ppb
PM2.5 and PM10
Measurement Range 999 ug/m3
Measurement Accuracy ±15% or ±15 μg/m³, whichever is greater
Measurement Resolution 1 ug/m3
Measurement Range 0~50°C
Measurement Accuracy ±1°C
Measurement Resolution 0.01°C
Relative Humidity
Measurement Range 0 to 100%
Measurement Accuracy ±3%@25°C (20~80% RH), others ±5%
Measurement Resolution 0.01%
General Specifications
Operating Conditions 0~40°C (32~104°F), 0~95% RH, non-condensing, with lithium-ion batteries 0~50°C (32~122°F), 0~95% RH, non-condensing, without lithium-ion batteries
Storage Conditions -20~60°C (-4~140°F), 0~85% RH, non-condensing, without lithium-ion. batteries
Power Supply Rechargeable Battery : Li-ion 18650 3.7V *3 | AC Adapter : 5V±5% >1A, 100~240 VAC, 50/60 Hz
Data Storage Capacity depend on SD card capacity (max.16G SD card)
Alarm 80db ±5% @ 10cm
Weight 305g (without batteries)
Dimensions 204.5 x 91.7 x 49.6 mm
Warranty 1 year

manual & docs

related products

how to order


All prices are listed in Australian dollars and include GST. Delivery and credit card transaction charges may apply.

  • ESCM-501: $670
  • ESCM-504: $1030
  • ESCM-505: $1380
how to order

Complete a web enquiry form here with your contact details and the model you require. You will then receive an email with a PDF containing a link for a secure, online payment.

Click here for the web enquiry form.