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 Air Quality Co2 Meter With Datalogger

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

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Bs.8198

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Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Breathe smarter, work safer — your indoor air quality ally!

PORTABLE POWERHOUSE - Compact, lightweight design with a large backlit LCD and intuitive keypad—perfect for on-the-go professionals.
DATA DRIVEN DECISIONS - Store and review up to 99 data sets to identify trends and ensure workplace safety compliance.
PRECISION CO₂ TRACKING - Stay ahead with accurate 0-5000 ppm CO₂ readings using cutting-edge NDIR technology.
VERSATILE APPLICATION READY - Ideal for offices, classrooms, labs, and HVAC inspections where air quality matters most.
COMPREHENSIVE ENVIRONMENTAL INSIGHT - Simultaneously monitor temperature, humidity, dew point, and wet bulb for full indoor air quality clarity.

The Extech CO250 is a portable indoor air quality meter featuring an advanced NDIR sensor for precise CO₂ measurement up to 5,000 ppm. It simultaneously tracks temperature, humidity, dew point, and wet bulb, storing up to 99 readings for trend analysis. Designed for professionals, it offers a large backlit LCD, user-friendly interface, and comes complete with data acquisition software, batteries, and carrying case—perfect for ensuring optimal air quality in diverse environments.

Specifications

ASIN	B0029V2GB4
Batteries	4 AA batteries required. (included)
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Best Sellers Rank	#230,007 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #288 in Indoor Air Quality Meters
Color	Black
Customer Reviews	3.8 3.8 out of 5 stars (18)
Date First Available	May 14, 2009
Included Components	Unit^Instruction Guide
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	6.7 ounces
Item model number	CO250
Manufacturer	Extech
Number Of Pieces	1
Part Number	CO250
Product Dimensions	2.76 x 2.24 x 7.87 inches
Style	CO250
Warranty Description	1 year

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