Warranty repairs are performed by Allegheny Instruments, Inc. at our facility in Virginia.  Before you return any component for repair you must get a Return Authorization Number (RMA).  You can obtain an RMA in either of the two following ways.

By telephone (800) 343-3479 USA and Canada, (540) 468-3740 everywhere else.
By email from

Once you have received an RMA number, ship the component(s) to:
Allegheny Instruments
RMA# (the RMA number you obtained)
1509 Jackson River Road
Monterey, VA 24465 USA

Repairs outside the warranty period are performed by our factory trained specialists at Abbytek Enterprises and can be contacted at:
Abbytek Enterprises
Attn: John Gaunt
10382 Fawn Road
Greenwood DE 19950 USA

Telephone (866) 293-8434 USA and Canada, (302) 337-7373 everywhere else.