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How are US orders shipped?

CO2Meter utilizes Federal Express (FedEx), DHL, or United States Postal Service (USPS) shipping at checkout.

We endeavor to ship all orders received before 1:00 pm et. the same day Monday through Friday based on supply. USPS orders are shipped the following day Monday through Friday.

While USPS is typically the lowest cost carrier, we do not recommend this method of delivery.

I need delivery tomorrow. Can you ship overnight?

When overnight shipping via Federal Express (FedEx) or United Parcel Service (UPS) is requested we endeavor to ship these orders the same day based on supply. In the event we cannot fulfill an overnight shipping request we will contact you to arrange for alternate methods of shipping. For overnight delivery select the next day service in the checkout process and we will work to satisfy your request.

How are international orders shipped?

We ship anywhere in the world our shippers operate. Shipping options will be listed at checkout. All applicable duties, tariffs, taxes, and brokerage fees will be the customers responsibility.

IMPORTANT: USPS does not offer tracking beyond the US border for USPS International Shipping. If you select USPS International Shipping, we cannot guarantee delivery after the shipment leaves the United States.

Can I use a freight forwarder for international shipments?

Because of the high costs of UPS or FedEx shipping, many of our international customers use package forwarding companies. Popular package forwarding services in the United States include and You should review each of these to see which best meets your requirements.

To utilize a freight forwarder, orders with CO2Meter will need to be placed directly with our sales team and not online. For assistance, please contact and be prepared with all your freight forwarders contact information.

How do I track my order?

We will email you a UPS or FEDEX tracking number the same day we ship your order. If you have not received the email within 2 business days of ordering, send us an e-mail and we'll track it down for you.

Is a Certificate of Calibration Available?

1) If requested at the time of purchase a certificate of calibration will be created at no charge to the customer.

2) A device can be sold and then returned through the Customer Case Support process for calibration. A fee of $150 is applicable for this calibration service.

*Note that the customer is responsible for inbound and outbound shipping charges associated with returns.

If a device has shipped from the CO2Meter facility without a certificate of calibration being requested at the time of purchase our office is unable to provide the information after the fact. The only way to create a certificate of calibration for devices that are already in the field is to return them by contacting CO2Meter directly and paying a $150 calibration fee.

Do you accept PO's?

Businesses, wholesalers, international business customers, research facilities, governmental units, schools and universities are encouraged to use our online RFQ form for fastest response. You can also email a purchase order to or fax to (866) 422-2356 including item(s) requested, quantities, contact information, e-mail address and shipping instructions. Failure to provide all relevant information will extend the quotation and payment processing timeline. We will e-mail a Sales Order back to you with total cost and instructions to complete payment.

Do you accept U.S. Government / MIL PO's?

Yes. CO2Meter, Inc. is registered under the U.S. Federal Government System for Award Management (SAM). DUNS: 056099946. CAGE: 7G0D4.

Can I pay by check/MO/wire transfer/Net30 or use another carrier?

Most businesses, wholesale and international business customers who place an order by PO will be asked to pre-pay their initial order by credit card, check, money order, or wire transfer. Payment terms are reserved for select customers with who we have established a prior business relationship with. Please call (386) 310-4933 M-F 9-2 EST or email to request a credit application.

Can I use my own FedEx or UPS account to pay for shipping?

If you wish to use your preferred carrier and account information, orders with CO2Meter will need to be placed directly with our sales team and not online. For assistance, please contact and be prepared with your account information.

Why doesn't PayPal show the shipping charges?

When you select the option to pay via PayPal, it only shows the item total, not the final billing total. Note the instructions on the bottom of the PayPal payment page: "click continue to return to to complete your order.

Clicking Continue in PayPal does not complete your order. When you click continue, you are returned to the checkout cart, where you can select shipping options, add any coupon codes, then complete the order (or cancel). Shipping costs will be added to your PayPal total automatically.

Is my credit card information safe with you?

All online credit card transactions (PayPal or ShopPay) are secure and managed by Shopify Payments. Sales placed with our sales team are secure transactions conducted by VersaPay.

Can I just call and place an order?

Orders can be placed with our technical sales team by contacting us at (386) 872-7665 M-F 9-2 et. or at This is also the best method of establishing a long-term relationship with CO2Meter as well.

What is the difference between CO2Meter and GasLab®?

GasLab® was acquired by CO2Meter in 2022. We continue to support the GasLab® website and devices as we work to integrate the two companies. All GasLab® related sales and support questions can now be directed to CO2Meter.

What kind of warranty do you offer?

CO2Meter warrants the Products to be substantially free of defects in workmanship and materials for the period indicated on the applicable Product Webpage (generally either one (1) year or ninety (90) days from the date of shipment) only when used in accordance with the Product specifications and for their intended purposes as set forth on the applicable Product Webpage (the “Manufacturer’s Limited Warranty”).  The Manufacturer’s Limited Warranty is the sole warranty made by Us with respect to any Product. 

To take advantage of the Manufacturer’s Limited Warranty, the Product must be returned to us at Your expense. Along with the Product, you must include (a) proof of purchase and delivery; (b) a written summary of the defect You allege to be covered by the Manufacturer’s Limited Warranty; (c) a picture of the defect; and (d) a name, phone number, and return mailing address.  You must also contact before making any return based on a claim under the Manufacturer’s Limited Warranty.

In the event of an alleged warranty claim under the Manufacturer’s Limited Warranty, You agree to contact Us to request a return authorization prior to returning any Products to Us. We will only honor valid warranty claims under the Manufacturer’s Limited Warranty of which we have been given notice prior to the expiration of the applicable limited warranty period. You agree to comply with all commercially reasonable rules and policies governing the processing of warranty claims under the Manufacturer’s Limited Warranty which we may institute from time to time. Such rules and policies may be located at

What is your return policy?

If the product fails under normal use, it may be returned. Please contact CO2Meter directly, to issue your return. To obtain a return number, call (877) 678-4259 or send an email to Please have your original order or serial number ready, if available.

If a return is required, you will receive steps to complete a required form and submission.


Devices returned WITHOUT completing a return form or contacting a CO2Meter representative will be charged a $99 processing fee.

Please use the original packaging (if available) when returning the meter to CO2Meter. Include the provided return number on the outside of the box, preferably on the shipping label. Secure the meter inside the package properly to prevent any damage during transit. Ship the meter to the address listed on your return paperwork.

NOTE: For items returned during the warranty period, return shipping back to you will not be charged.

Meters that have failed due to improper use, damage, abuse, or are out of warranty period will be examined and an estimate of repair/replacement will be provided before repairs are made.

All applicable duties, tariffs, taxes, and brokerage fees will be the responsibility of the customer.

What is your refund policy?

If, after receiving the product you determine that it does not meet your needs, an return number must be obtained from within 30 days of delivery. To be considered for a refund, original box with all parts, manual, and packaging must be included. The item must be received at in working condition void from any damage, misuse, or tampering.

To obtain an return for a full refund less shipping costs, call at (877) 678-4259 Toll Free.

Any missing parts or damage to the device will result in less than the full purchase price being refunded. All returns for refund after 30 days will incur a 25% restocking fee.

No product will be accepted for return or refund after 45 days from shipment.

See CO2Meter, Inc. Terms and Conditions here.