Providing outstanding customer service, support and product solutions is our highest priority.

With corporate owned offices in the United States, Germany, the United Kingdom, and China, local personalized support is easily accessible. Pacific Power Source, Inc. offer both pre-and post-sales support on all current products at Authorized Service Centers listed below.

North America & International Locations Outside the EU

Pacific Power Source, Inc. 2802 Kelvin Avenue, Suite 100 Irvine, CA 92614 USA
Toll-Free (USA) : +1(800)854-2433
Phone : +1(949)251-1800

United Kingdom & Ireland

Caltest Instruments, LTD. Unit 2 Viceroy Court, Bedford Road, Petersfield, Hampshire, GU32 3LJ. UnitedKingdom
Phone : +44(0)1483 302 700
+44(0)1483 300 562

European Union (EU)

Caltest Instruments, GmbH.
Binzigstraße 21 77876
Phone : +49(0)7842-99722-00


PPST Shanghai 4 floors , building 2, No. 2185 Lai Fang Road Jiu Ting Town, Song Jiang District Shanghai 201615 China
Phone : +86-21-6763-9223

Return Material Authorization Form (RMA)

All repair returns to Pacific Power Source must include a “Return Material Authorization” or RMA number. To receive an RMA number, please contact us at Toll-Free(USA): + 1(800) 854-2433 or email us at
If your item was not purchased directly from us, please contact your sales representative to make arrangements with them for the return of your product.
1. Please make sure RMA number is visible on shipping box.
2. We kindly ask that our equipment be returned in the original or similar packaging. Packaging of a quality less than that of the original packaging can result in shipping damage, which as a normal rule, we would not be responsible for regardless of repair status ( warranty or cost repair). If sending multiple units, do not stack units one on top of the other to prevent cosmetic damage resulting from rubbing parts during shipment.

Service Limited Warranty

Pacific Power Source (PPS) warrants repair work to be free from defects in material and workmanship for the period of ninety (90) days from the invoice date. This warranty applies to replaced parts or subassemblies only. This warranty does not include batteries. All shipping and packaging changes are the sole responsibility of the buyer. Pacific Power Source will not accept debit memos for returned power sources or subassemblies. Debit memos will cause return of power sources or subassemblies without repair. This warranty is exclusive of all warranties, express or implied.

General Terms & Conditions

The General Terms & Conditions document defines payment terms, shipping charges, title passage, packaging, indemnification, warranty terms as well as Pacific’s Service & Spare Parts Limited Warranty. We encourage you to read these terms and conditions very carefully. Any additional or different terms or conditions in any form presented by you (“the customer”) outside of the Pacific Power Source, Inc. General Terms & Conditions are hereby deemed to be material modifications and notice of disapproval to them and rejection of them is hereby delivered.
Any general description of the types of products, applications, and or options posted on the website does not constitute part of the agreement between seller and customer.
Pacific Power Source, Inc. General Terms & Conditions are subject to change without prior notice, except that Pacific Power Source, Inc. General Terms & Conditions posted on this website at the time customer places an order will govern the order in question, unless otherwise agreed in writing by seller and customer.
For more information or questions regarding the Pacific Power Source, Inc. General Terms & Conditions, please contact Pacific Power Source, Inc directly or contact your local representative.