We have moved to Danbury, CT to new larger facilities.

           GiCi is ISO 17025:2017 Accredited by A2LA

                 Now with accredited calibration to 175 KV and  capability to 250 KV!
We are fully operational and staffed at our new location, and can expeditiously handle your calibration and repair requests. Dr. Jonathan Shapiro remains a consultant to GiCi.

We have a large selection of used Dynalyzer high voltage units and digital displays. They will be repaired as needed to insure a long life.

Parker Medical manufactures the H917  voltage divider for bi-polar x-ray generators, and the H1049 and H2828 monopole divider, available with a variety of high voltage connectors.

Steve Laisi (EE), Calibration Manager
Phone: 860-350-4304
Fax: 860-350-3432

Shipping Address
                                         Greenwich Instrument Co. Inc, a division of
Parker Medical Inc.
43 Old Ridgebury Road
Danbury, CT 06810

Parker Medical is a leading supply of X-Ray high voltage cables, connectors, components and other assemblies. Consult the PMI web site for more info:

Deuteronomy 25:15, External link opens in new tab or windowKJV:

" But thou shalt have a perfect and just weight, a perfect and just measure shalt thou have: that thy days may be lengthened in the land which the LORD thy God giveth thee.'"

Complete used set of Dynalyzer IIIA, some upgraded to Radcal IIIU version. high voltage unit, Dynalyzer III Digital Display, Interconnect cable, line cords, copies of instruction manual, and heavy duty as-is carry case for each. Call for pricing. See used equipment tab.

Units are calibrated to spec. Limited 12 month guarantee, repair or replace at our option. These high voltage units are  internally inspected and rebuilt  and calibrated prior to shipping.


Don’t Let a Surprise Audit Ruin Your Day; Calibrate Now! Over 30 Years and >20,000 Calibrations!

No one has serviced Dynalyzer™ longer or better than Greenwich Instrument Co. Inc. in Greenwich, CT. We offer exceptionally fast turn around on your equipment calibration. Dr. Jonathan Shapiro, headed up the Dynalyzer design team at Machlett Labs in 1976, and has been associated with the Dynalyzer ever since.

We have used, rebuilt Dynalyzer™ sets ready to go. We also have the New Parker Medical H917 bipolar  voltage divider,  and the H2828 180 KV monopole divider , high voltage test cables, and  Mammo test cables.

Please request an RMA number. write or call 1-860-350-4304

Parker Monopole Dividers

1. New GiCi 2000 ( H917) Dividers, tested +/- 75KV. +/-82.5 kv test on request.

2. New ParkerH1049-P1  and H2828 Monopole dividers, cal data to 150 KV, hi pot tested to 165 KV, with extended Federal Standard connector. Also available with R24 HV connector. These are single section dividers also available with 6 pin extended federal standard connectors for use with GE CT scanners.   ISO 17025 accredited calibration.

Differences between 17025 and 9001

We also calibrate MAS meters, scopes and DVMs.

Name: *
Phone: *
Email: *