Does it data logging? If so, how can the data is recovered?

Built-in RS-232 interface for capturing readings on PC * Data acquisition software and cable included to record and document CO2, Humidity and Temperature data

Does it come with certificate of calibration?

The standard calibration price is $195. and the option is NIST Certificate. this will add 1 week to your order.

If one does not pay to have it calibrated as in the other answer, how does the meter establish a baseline?

Turn it on outside for baseline readings.

Can it be calibrated at a later date?

Thank you for your question. The calibration for new item is made by the manufacturer, so it is not possible to set up the later date.

Extech Co250 Portable Indoor Air Quality Co2 Meter Datalogger

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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VT245025

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Breathe smarter, work safer — the CO250 keeps your air quality in check!

RELIABLE BRAND BACKING - From Extech, a trusted name in precision environmental instruments.
ADVANCED EXPOSURE ANALYTICS - Calculate 8-hour TWA and 15-minute STEL to ensure workplace safety compliance.
READY TO USE OUT OF THE BOX - Includes 4 AA batteries so you can start monitoring immediately—no extra purchases needed.
COMPACT LIGHTWEIGHT DESIGN - Weighing just 190g and pocket-sized for effortless portability during inspections.
COMPREHENSIVE AIR QUALITY MONITORING - Track CO2, temperature, humidity, dew point & wet bulb for a full environmental snapshot.

The Extech CO250 is a portable indoor air quality meter and datalogger that measures CO2, temperature, humidity, dew point, and wet bulb. It calculates critical exposure metrics like TWA and STEL, comes lightweight and compact with included AA batteries, making it ideal for professionals ensuring safe and healthy indoor environments.

Specifications

Brand	Extech
Manufacturer	Extech
Model number	CO250
Number of Memory Sticks	1
Item Weight	190 g
Product Dimensions	7 x 5.7 x 20 cm; 189.94 g
Batteries	4 AA batteries required. (included)
Item model number	CO250
Item Height	20 Centimeters
Item Width	5.7 Centimeters
Are batteries included?	Yes
Lithium Battery Packaging	Batteries contained in equipment
Lithium battery weight	190 g
Number of lithium metal cells	1

Reviews

D**N

Impressive accuracy and price

24.03.2018

R**O

Does Not Come With Everything You Need

14.11.2014

L**.

No manufacturer supported power unit

14.09.2011

R**A

Excelente compra

Es tal cual el equipo que se anuncia, excelente precio, es muy preciso y muy amigable en su operación lo recomiendo ampliamente

26.09.2021

J**N

You get what you pay for.

15.04.2022

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Excellent communication throughout the order process. Product is perfect.

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VT245025

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Extech CO250 Portable Indoor Air Quality CO2 Meter/Datalogger

Description

Specifications

Reviews

Common Questions