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Happy to answer your questions

Give us a call or drop by anytime, we endeavour to answer all enquiries within 24 hours on business days. We will be happy to answer your questions.

Customer Service (MON - FRI)

+41 (0)58 329 31 80

info@checksum.ch

Technical Support (MON - SUN)

+41 (0)58 329 31 85

info@checksum.ch

checksum AG

Pfingstweidstrasse 110 

CH-8005 Zurich

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