If you have any problems concerning directly the device or means of calibration,
contact the Service Department of TKA SCIENTIFIC INSTRUMENTS ltd.
E-mail of Technical Support: lab@tkaspb.ru
33/1 lit.B Gruzovoy proyezd, St. Petersburg 192289, RUSSIA
phone/fax: (812) 331-19-81, 331-19-82, 331-19-88 e-mail: info@tkaspb.ru