Calibration
Calibration of Pocket CO is recommended at least yearly to ensure accurate readings, or whenever the accuracy of the reading is critical. Calibration can be done though KWJ's TechCheck service, or by using the Calibration Kit (Model 300 only). The Calibration Kit is safe and easy to use, and takes just minutes. It is available for $39, and can be purchased on our Order page.
KWJ TechCheck Service:
KWJ's TechCheck service is an easy way to perform the recommended yearly calibration. For $79, this service includes a full inspection of your instrument, calibration and testing, new battery, firmware update, and new CO sensor element if needed.
Instruments can be sent to KWJ Engineering for a TechCheck through the mail. Just print out and complete a copy of the service form. Then place the completed form, along with your Pocket CO, in a padded envelope and mail to:
KWJ Engineering
Pocket CO TechCheck
8440 Central Avenue #2C
Newark, CA. 94560
Shipping within the U.S. costs only a few dollars. Please do not mail the manual, or any of the original packaging. Please remove anything attached to the keychain or clip. The TechCheck is usually completed within 5-7 business days after arrival.
For further information on battery replacement, calibration service, or repairs, please contact KWJ Engineering Inc:
Email: pocket_support@kwjengineering.com
Phone: (877) 794-4296
Attention owners of Model 100 and Model 200 instruments:
To calibrate your Model 100 or Model 200 instrument, or to replace the battery, contact KWJ Engineering for instructions and pricing information. (877) 794-4296
Or, take advantage of KWJ's upgrade offer. For the discounted price of $99, you can upgrade to a Model 300. This new detector is as reliable as your current instrument, but has the advantage of a replaceable coin-cell battery. This new model also allows you to calibrate the instrument yourself (with Calibration Kit), rather than mailing it in. Just send your old instrument to KWJ along with this service form, and a check for $99. Credit cards can also be processed over the phone.
