Extech CO240 Air Quality Meter

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Extech CO240 Air Quality Meter

The CO240 measures Carbon Dioxide (CO2), Air Temperature and Humidity, as well as Dew Point and Wet Bulb calculations. The user settable high alarm with audible beeper is perfect for conducting a quick check of CO2 level to help adjust the environmental conditions in an enclosed area, such as a greenhouse or nursery, to insure optimal plant grown. Complete with six AAA batteries, USB cable, PC software and soft case.

Extech CO240 Air Quality Meter is a compact and reliable instrument designed to measure indoor air quality efficiently. It accurately detects Carbon Dioxide (CO₂), Temperature, Humidity, and Dew Point, making it an ideal choice for maintaining healthy environments in HVAC/Clean Rooms, offices, classrooms, and laboratories. The device features a large LCD display that simultaneously shows CO₂ levels and environmental conditions, helping users identify poor ventilation or unsafe air quality in real time.

This meter also includes a built-in NDIR (non-dispersive infrared) CO₂ sensor that ensures long-term stability and accuracy. With its data hold, min/max readings, and auto power-off functions, the Extech CO240 is engineered for both convenience and performance. The intuitive interface and portable design make it a perfect tool for technicians, environmental engineers, and indoor air quality professionals.

If you are looking for Extech CO240 Air Quality Meter Price in Bangladesh, Pico Labs Ltd. offers authentic products at competitive rates, along with expert support and calibration facilities. The CO240 is a trusted choice for anyone who values precise air monitoring and compliance with environmental standards, especially in HVAC/Clean Rooms and controlled environments.

Pico Labs Ltd. delivers professional calibration, testing, and rental solutions for electrical and environmental measuring instruments across Bangladesh. With a commitment to accuracy and reliability, we support industries with certified equipment and expert technical assistance, ensuring every measurement meets international quality standards.

Key Features

1. Multi-parameter measurement

Measures ambient CO₂ concentration, along with air temperature and relative humidity.
Also computes dew point and wet-bulb temperature based on the measured values.
Dual-display capability: you can view CO₂ plus one of humidity, temperature, dew point or wet bulb simultaneously.

2. Reliable CO₂ sensing

Utilises a maintenance-free NDIR (non-dispersive infrared) CO₂ sensor, offering stable performance and low maintenance.
Measurement range for CO₂: 0 to 9,999 ppm, with resolution of 1 ppm.

3. Alarm & data recall functions

User-settable audible CO₂ warning alarm: the beeper will sound when CO₂ concentration exceeds the threshold you set.
Min/Max CO₂ value recall: lets you see the high and low CO₂ levels measured during a session.

4. Data logging & PC connectivity

Includes software and USB cable for on-line (real-time) data streaming to a PC — useful for logging and monitoring data over time.
Data Hold function (freeze current reading) and Auto Power-Off (can be disabled) to conserve battery.

5. Calibration & baseline adjustment

Automatic baseline calibration (ABC) function: the instrument can self-adjust to the background CO₂ level over time.
Manual calibration is possible if needed for accuracy verification.

6. Practical design features

Handheld, portable form factor suitable for field or building-environment use.
Tripod mounting capability (tripod sold separately) for stable measurements in a fixed location.
Low battery indicator, so you know when to replace batteries.
Includes six AAA batteries, USB cable, PC software, universal AC adaptor and soft case—so it's ready to use out of the box.

7. Specification highlights

Temperature range: approx. –10 °C to +50 °C (14 °F to 122 °F) with resolution 0.1 °C/°F.
Humidity range: approx. 10 % to 90 % RH with resolution 0.1 % RH.
Dew point & wet bulb ranges according to internal calculation algorithm.
Compact size and lightweight for portability (approx. 211 × 60 × 40 mm / 6.4 oz).

Specifications

General
Carbon Dioxide [CO2]	0 to 9,999ppm
Carbon Dioxide [CO2] Basic Accuracy	±(5% of reading + 75ppm)
Carbon Dioxide [CO2] Max Resolution	1ppm
Dew Point	-99.2 to 118°F (-72.9 to 47°C)
Dew Point Max Resolution	0.1°F/°C
Relative Humidity	10 to 90%
Relative Humidity Basic Accuracy	±5%
Relative Humidity Max Resolution	0.10%
Temperature [Air]	14 to 122°F (-10 to 50°C)
Temperature [Air] Basic Accuracy	±2.0°F (1.0°C)
Temperature [Air] Max Resolution	0.1°F/°C
Wet Bulb	12.2 to 118.8°F (-11 to 48.2°C)
Wet Bulb Max Resolution	0.1°F/°C