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Service & Support

Service and support information for our liquid handling systems and products, and our regular and extended warranty options.

Important Announcement

Drummond Scientific is not the manufacturer of any products sold in Harbor Freight stores.
Please contact your local store for assistance.

Service Details

Warranty Information

All Pipet-Aids are exclusively warranted by Drummond Scientific for one year from date of purchase. To activate a product warranty, please complete the warranty form on this page.

Please note that all fields – including the serial number – must be completed to receive a valid warranty.

As a registered user you will receive an extended warranty and information on product updates and product releases. The extended warranty includes an additional six months for a full 18-month warranty. 

Privacy Policy: Personal information such as email addresses, postal address, and telephone number will never be sold or rented to third parties.

Attention Harbor Freight Customers

Drummond Scientific Company does not manufacture, nor provide technical support for any devices sold in Harbor Freight stores with the name “DRUMMOND.”

Drummond Scientific will not be able to assist you with any issues you are experiencing with these devices.  Please contact your local Harbor Freight store for assistance with any products sold by Harbor Freight.

Drummond Scientific Warranty Contact Form

Please complete this registration form and submit today to receive Technical Support and Customer Services within the terms of our Drummond Scientific Warranty.

  • Product Information

  • Item NumberSerial NumberDate of Purchase 
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  • This field is for validation purposes and should be left unchanged.

Troubleshooting Guides

Our troubleshooting guides offer some common fixes for ensuring our products are working and performing properly. If you are experiencing any issues, please review the guides for information and instructions.


Review frequently asked questions and answers.


Get products and services information.

The New Nanoject III Is Now Available!

Nanoject II vs. Nanoject III Comparison

Both units utilize the same glass capillaries for pulling micropipettes. Due to the new improved method of securing the micropipette, smaller tips can be pulled and utilized on the Nanoject III. No O-rings to wear out. A micro “chuck” is used, and it simplifies attachment of the micropipette once backfilled with oil. The Nanoject III’s auto HOMING feature will eliminate the need to “rehome the unit as in the Nanoject II. This can reduce, if not totally eliminate, jamming of the plunger. Now available for the Nanoject II is the new Digital Control Box which has all the functionality of the original control box but now features a user friendly, easy to read touchscreen.

Nanoject II
Nanoject III

Drummond Pipet-Aid® Controller Comparison Chart

Use this comparison chart to understand the difference between Drummond Pipet-Aid® Controller models and their useful features. This information will help you choose the best pipette controller to deliver the most accurate results for your intended applications.