800-942-0315 (U.S. & Canada) or 847-918-3510
Click here to email us
Call us at 800-942-0315 to place your credit card order or
fax your order to 800-949-7502
To set up an account with us please download our terms and conditions and credit application:
Terms and Conditions
Download Terms and Conditions
Excel Credit Application
Download Excel Credit Application
pdf Credit Application
Download pdf Credit Application
Use either the Excel spreadsheet or the pdf form.
Please allow 7 to 14 days to process your credit application.
Please urge your credit references to respond quickly.
You may use your company credit card until the application process is complete.
Email purchase orders to
To make sure your purchase order gets through:
pdf file attachments are preferred
Convert spreadsheets or Word documents to pdf files
Compressed files such as .zip or .rar are discarded
Do not include a string of asterisks (***) in your email
Please include relevant Subject in your email
Purchase orders can be faxed to
800-949-7502 or 847-968-4891
Payment in full is due net 30 days from our invoice date
Checks must be made out to Absolute Process Instruments
Mail remittance to
Absolute Process Instruments
1220 American Way
Libertyville, IL 60048
Reselling Our Products
If you plan to resell our products there are two forms we need
Open Illinois form CRT-61 Certificate of Resale
Download Illinois form CRT-61 Certificate of Resale
Resellers must fill out and send us the Illinois Certificate of Resale CRT-61.
If you are a reseller outside of Illinois, this form is still required.
Your state resale tax certificate(s)
must be provided if you are a reseller.
Copies can be emailed to credit at api-usa.com or faxed to 800-949-7502.
Lead Times and Shipping
3-4 weeks for API current sensors if not in stock.
3-4 weeks for Seneca products if not in stock.
Call factory to get the exact lead time for your order.
Other shipping methods are available upon request
Prices F.O.B. Factory, Libertyville, IL 60048 USA
API Sales Partners & Distributors
Some specialize in certain industries or markets, and may stock popular models.
International Sales Partners
Call Us - 800-942-0315
Maida International Ltd.
Locust Valley, New York
A.P.C.S. Pty. Ltd.
Seven Hills NSW Australia 2147
Phone: +61 2 8825 9295