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Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon
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Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon
Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon
Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon
Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon

Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon Dioxide Alarm

$146.99

  • Free US shipping

  • Arrives

Extech CO100 
Desktop Indoor Air Quality CO2 Monitor 
Digital Carbon Dioxide Alarm
Brand New 
In Original Retail Packaging

Features

  • Checks for carbon dioxide (CO2) concentrations
  • Also measures air temperature and relative humidity
  • Maintenance free NDIR (non-dispersive infrared) CO2 sensor
  • Indoor air quality displayed in ppm with Good (0 to 800ppm), Normal (800 to 1200ppm), Poor (>1200ppm) indication
  • User programmable visible and audible CO2 warning alarm
  • Max/Min CO2 value recall function
  • Displays Year, Month, Date, and Time
The Extech CO100 is a desktop indoor air quality CO₂ monitor that measures carbon dioxide concentrations (CO₂) from 0 to 9,999 ppm, air temperature from -5°C to 50°C (23°F to 122°F), and humidity from 0.1 to 90% RH. It comes with a user programmable visible and audible CO₂ warning alarm. The meter has a maximum/minimum CO₂ value recall function. The CO100 is complete with a maintenance free NDIR (non-dispersive infrared) CO₂ sensor and a universal AC adaptor from Wallco Inc.

GENERAL SPECIFICATIONS
  • Carbon Dioxide (CO?) - 0 to 9999ppm
  • Carbon Dioxide (CO?) Basic Accuracy - ±75 ppm or ±5% of reading
  • Carbon Dioxide (CO?) Max Resolution - 1ppm
  • Relative Humidity - 0.1 to 90.0%
  • Relative Humidity Basic Accuracy - ±5%
  • Relative Humidity Max Resolution - 0.10%
  • Sampling Rate - 2 seconds
  • Sensor Type - CO₂ NDIR (non-dispersive infrared) technology
  • Temperature (Air) - 23 to 122 °F ( -5 °C to 50 °C)
  • Temperature (Air) Basic Accuracy - ±1.5 °C/2.7 °F
  • Temperature (Air) Max Resolution - 0.1 °
ADDITIONAL DETAILS
  • Certifications - CE
  • Dimensions - 117 × 102 × 102mm (4.6 × 4 × 4")
  • Display - Segment LCD with backlighting
  • Power - input 110V - 220V AC, output 6.0V DC, 500mA power supply
  • Weight - 204g (7.2 oz.)
Reviewed in the United States on October 22, 2012
Expensive but accurate! Reads correct temp within a degree. % humidity also seems accurate. GRATE to know (+ or - 75) CO2 reading is accurate. I recommend this to anyone that wants to know CO2 of indoor environment! Buy this NOT Acu Rite.
Reviewed in the United States on February 16, 2023
I have access to an industrial quality ambient CO2 meter and checked the CO100 against it, difference of 10ppm at 660ppm levels. I give this 4 stars because the backlight helps keep the rather dark LCD visible, and this is plug-in only. Why not have it possible to stay on?
As well, unplugging it momentarily wipes the time and date setting, less of an issue but also not as satisfying
Reviewed in the United States on March 31, 2018
Works really well. Immediately reacts to increased CO2 levels.
Reviewed in the United States on November 7, 2014
Great product and quick delivery!
jrp
5.0 out of 5 stars Works well and quick to react - provides a lot of reassurance
Reviewed in the United Kingdom on February 18, 2017
Works well, gives us a lot of reassurance as our baby is in a small nursery, this lets us know that the ventilation is working well and the humidity levels aren't getting too high / low for her. Would recommend.
LD
4.0 out of 5 stars Works well but design could be better at the price!
Reviewed in the United Kingdom on November 15, 2015
This CO2 meter works well but the design could be a little better. It is also pricey, hence the 4 star rating. We use it all the time now to ensure the rooms we spend a lot of time in are well ventilated. Everyone is so keen to hermetically seal their house to prevent heat loss, but forgets that ventilation is essential to move the CO2 out, or levels will rise and end up making you feel groggy in the morning and headachy. This unit would benefit from having a back light function and a back up battery as it has to be permanently plugged in to mains and the cord is not very long.

Isin:
IUYTKLJUFLRO

$146.99

  • Free US shipping

  • Arrives

In Stock

, Fulfilled by IBSPOT • Ships from US

IBSPOT Buyer Protection
  • Free 30-Day Returns
  • Full Refund for Damaged or Incorrect Items
  • Guaranteed Delivery or Money Back
  • Secure Checkout & Fast Support
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Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon Dioxide Alarm

Extech CO100 Desktop Indoor Air Quality CO2 Monitor Digital Carbon Dioxide Alarm

$146.99

Extech CO100 
Desktop Indoor Air Quality CO2 Monitor 
Digital Carbon Dioxide Alarm
Brand New 
In Original Retail Packaging

Features

  • Checks for carbon dioxide (CO2) concentrations
  • Also measures air temperature and relative humidity
  • Maintenance free NDIR (non-dispersive infrared) CO2 sensor
  • Indoor air quality displayed in ppm with Good (0 to 800ppm), Normal (800 to 1200ppm), Poor (>1200ppm) indication
  • User programmable visible and audible CO2 warning alarm
  • Max/Min CO2 value recall function
  • Displays Year, Month, Date, and Time
The Extech CO100 is a desktop indoor air quality CO₂ monitor that measures carbon dioxide concentrations (CO₂) from 0 to 9,999 ppm, air temperature from -5°C to 50°C (23°F to 122°F), and humidity from 0.1 to 90% RH. It comes with a user programmable visible and audible CO₂ warning alarm. The meter has a maximum/minimum CO₂ value recall function. The CO100 is complete with a maintenance free NDIR (non-dispersive infrared) CO₂ sensor and a universal AC adaptor from Wallco Inc.

GENERAL SPECIFICATIONS
  • Carbon Dioxide (CO?) - 0 to 9999ppm
  • Carbon Dioxide (CO?) Basic Accuracy - ±75 ppm or ±5% of reading
  • Carbon Dioxide (CO?) Max Resolution - 1ppm
  • Relative Humidity - 0.1 to 90.0%
  • Relative Humidity Basic Accuracy - ±5%
  • Relative Humidity Max Resolution - 0.10%
  • Sampling Rate - 2 seconds
  • Sensor Type - CO₂ NDIR (non-dispersive infrared) technology
  • Temperature (Air) - 23 to 122 °F ( -5 °C to 50 °C)
  • Temperature (Air) Basic Accuracy - ±1.5 °C/2.7 °F
  • Temperature (Air) Max Resolution - 0.1 °
ADDITIONAL DETAILS
  • Certifications - CE
  • Dimensions - 117 × 102 × 102mm (4.6 × 4 × 4")
  • Display - Segment LCD with backlighting
  • Power - input 110V - 220V AC, output 6.0V DC, 500mA power supply
  • Weight - 204g (7.2 oz.)
Reviewed in the United States on October 22, 2012
Expensive but accurate! Reads correct temp within a degree. % humidity also seems accurate. GRATE to know (+ or - 75) CO2 reading is accurate. I recommend this to anyone that wants to know CO2 of indoor environment! Buy this NOT Acu Rite.
Reviewed in the United States on February 16, 2023
I have access to an industrial quality ambient CO2 meter and checked the CO100 against it, difference of 10ppm at 660ppm levels. I give this 4 stars because the backlight helps keep the rather dark LCD visible, and this is plug-in only. Why not have it possible to stay on?
As well, unplugging it momentarily wipes the time and date setting, less of an issue but also not as satisfying
Reviewed in the United States on March 31, 2018
Works really well. Immediately reacts to increased CO2 levels.
Reviewed in the United States on November 7, 2014
Great product and quick delivery!
jrp
5.0 out of 5 stars Works well and quick to react - provides a lot of reassurance
Reviewed in the United Kingdom on February 18, 2017
Works well, gives us a lot of reassurance as our baby is in a small nursery, this lets us know that the ventilation is working well and the humidity levels aren't getting too high / low for her. Would recommend.
LD
4.0 out of 5 stars Works well but design could be better at the price!
Reviewed in the United Kingdom on November 15, 2015
This CO2 meter works well but the design could be a little better. It is also pricey, hence the 4 star rating. We use it all the time now to ensure the rooms we spend a lot of time in are well ventilated. Everyone is so keen to hermetically seal their house to prevent heat loss, but forgets that ventilation is essential to move the CO2 out, or levels will rise and end up making you feel groggy in the morning and headachy. This unit would benefit from having a back light function and a back up battery as it has to be permanently plugged in to mains and the cord is not very long.

Isin:
IUYTKLJUFLRO

Extech CO100 
Desktop Indoor Air Quality CO2 Monitor 
Digital Carbon Dioxide Alarm
Brand New 
In Original Retail Packaging

Features

  • Checks for carbon dioxide (CO2) concentrations
  • Also measures air temperature and relative humidity
  • Maintenance free NDIR (non-dispersive infrared) CO2 sensor
  • Indoor air quality displayed in ppm with Good (0 to 800ppm), Normal (800 to 1200ppm), Poor (>1200ppm) indication
  • User programmable visible and audible CO2 warning alarm
  • Max/Min CO2 value recall function
  • Displays Year, Month, Date, and Time
The Extech CO100 is a desktop indoor air quality CO₂ monitor that measures carbon dioxide concentrations (CO₂) from 0 to 9,999 ppm, air temperature from -5°C to 50°C (23°F to 122°F), and humidity from 0.1 to 90% RH. It comes with a user programmable visible and audible CO₂ warning alarm. The meter has a maximum/minimum CO₂ value recall function. The CO100 is complete with a maintenance free NDIR (non-dispersive infrared) CO₂ sensor and a universal AC adaptor from Wallco Inc.

GENERAL SPECIFICATIONS
  • Carbon Dioxide (CO?) - 0 to 9999ppm
  • Carbon Dioxide (CO?) Basic Accuracy - ±75 ppm or ±5% of reading
  • Carbon Dioxide (CO?) Max Resolution - 1ppm
  • Relative Humidity - 0.1 to 90.0%
  • Relative Humidity Basic Accuracy - ±5%
  • Relative Humidity Max Resolution - 0.10%
  • Sampling Rate - 2 seconds
  • Sensor Type - CO₂ NDIR (non-dispersive infrared) technology
  • Temperature (Air) - 23 to 122 °F ( -5 °C to 50 °C)
  • Temperature (Air) Basic Accuracy - ±1.5 °C/2.7 °F
  • Temperature (Air) Max Resolution - 0.1 °
ADDITIONAL DETAILS
  • Certifications - CE
  • Dimensions - 117 × 102 × 102mm (4.6 × 4 × 4")
  • Display - Segment LCD with backlighting
  • Power - input 110V - 220V AC, output 6.0V DC, 500mA power supply
  • Weight - 204g (7.2 oz.)
Reviewed in the United States on October 22, 2012
Expensive but accurate! Reads correct temp within a degree. % humidity also seems accurate. GRATE to know (+ or - 75) CO2 reading is accurate. I recommend this to anyone that wants to know CO2 of indoor environment! Buy this NOT Acu Rite.
Reviewed in the United States on February 16, 2023
I have access to an industrial quality ambient CO2 meter and checked the CO100 against it, difference of 10ppm at 660ppm levels. I give this 4 stars because the backlight helps keep the rather dark LCD visible, and this is plug-in only. Why not have it possible to stay on?
As well, unplugging it momentarily wipes the time and date setting, less of an issue but also not as satisfying
Reviewed in the United States on March 31, 2018
Works really well. Immediately reacts to increased CO2 levels.
Reviewed in the United States on November 7, 2014
Great product and quick delivery!
jrp
5.0 out of 5 stars Works well and quick to react - provides a lot of reassurance
Reviewed in the United Kingdom on February 18, 2017
Works well, gives us a lot of reassurance as our baby is in a small nursery, this lets us know that the ventilation is working well and the humidity levels aren't getting too high / low for her. Would recommend.
LD
4.0 out of 5 stars Works well but design could be better at the price!
Reviewed in the United Kingdom on November 15, 2015
This CO2 meter works well but the design could be a little better. It is also pricey, hence the 4 star rating. We use it all the time now to ensure the rooms we spend a lot of time in are well ventilated. Everyone is so keen to hermetically seal their house to prevent heat loss, but forgets that ventilation is essential to move the CO2 out, or levels will rise and end up making you feel groggy in the morning and headachy. This unit would benefit from having a back light function and a back up battery as it has to be permanently plugged in to mains and the cord is not very long.

Item Specifics

  • Brand: Extech
  • Model: Desktop CO2 Monitor
  • MPN: CO100
  • Country/Region of Manufacture: China
  • Gas(es) Detected: Carbon Dioxide
  • UPC: 793950510001

Processing Time

  • We process and ship orders Monday through Friday, excluding holidays.
  • Most orders are processed within 1–3 business days, depending on product availability.
  • Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.

Shipping Coverage

We currently ship to addresses within the United States only.

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  • Our U.S. warehouses, or
  • Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).

Each product page clearly displays the “Ships From” location before checkout.

Shipping Methods & Estimated Delivery

Shipping Method Estimated Delivery Cost
Free Shipping (US) 5–10 business days Free, available on eligible items
Standard Shipping (US to US by Item) 5–10 business days $5.95 for the first item, $3.00 each additional
Standard Shipping (From US Warehouse by Weight) 3–7 business days Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb.
Extended Delivery (Ships from Overseas Warehouse) 10–20 business days $14.99 for the first item, $2.00 each additional

Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.

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We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout. 

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We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.

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All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.

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Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.

You can track your shipment anytime using the Track Your Order page on our website.

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If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.

Contact: support@ibspot.com

Item Not Received

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Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.

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Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.

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We accept returns for most items within 30 days of delivery for a full refund.

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Our team will provide you with return instructions and a prepaid return label.

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We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.

If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.

If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.

For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.

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Once your return is received and inspected:

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Please allow:

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Exchanges

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The fastest way to get what you need is to return the original item and place a new order once your return is accepted.

Return Address

IBSPOT Return Center
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Dover Plains, NY 12522
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Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.

Email: support@ibspot.com
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