Simply puts your mind at rest.

Review for CalCard

If you’ve ever had a reading that makes you question the tester, then nothing is simpler than using this card. Handy to leave in your test kit.

Posted by Reccyman (Supplier) on 2015-09-12 17:21:49

5/5

Posted by GAry Bowles (Amazon) on October 23, 2016

Review for CalCard

A simple and effective way to keep tracks of results on your tester

Posted by Reccyman (Supplier) on 2015-09-12 17:21:49

5/5

Posted by stevefiler0 (eBay) on October 5, 2016

Review for CalCard

A great way of self testing my meters for reassuring accuracy.

Posted by Reccyman (Supplier) on 2015-09-12 17:21:49

5/5

Posted by Gary (Supplier) on January 1, 2014

Review for CalCard

used these cards for years found them to be very accurate ideal for onsite checks.Brought a new one as original one was stolen

Posted by Reccyman (Supplier) on 2015-09-12 17:21:49

CalCard® from TestCal