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CalCard® Calibration Checkbox

Verification of Instruments Ongoing Calibration Accuracy

CalCard® from TestCal

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Ongoing Calibration Verification for Electrical Test Instruments.

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Every person undertaking the design, construction, maintenance, verification and/or inspection and testing of electrical installations is required to maintain records demonstrating the ongoing accuracy and consistency of test instruments. This is specified by IET (Electrotechnical Assessment Specification EAS 15-362, July 2015).

This CalCard® is the only card solution to meet these criteria fully and thereby accepted and approved by all regulatory bodies. Enabling the consistency check for the prime measurement of continuity and insulation instrumentation.

Credit Card Sized CalCard

The Smallest Toughest Checkbox Available 

Clips Conveniently to Your Instrument.  

Where You Need it.

No Probe/Tip Removal 

Simply Hold Against Contact Pad. 

 Contact Pads are Gold and Nickle Plated 

 Enabling Repeatably and Accuracy. 

Crock Clip Compatible.

Accommodates All Types of Probes.

 Local Permanent and Indelible Record  

of Base Line Reference Measurements.

Customisation Options 

for Distributors and Suppliers

Extends the regulation period for instrument calibration.

Verifies electrician’s test instrument ongoing calibration accuracy.

Saves professionals time, money and inconvenience of yearly calibration.

The CalCard® : –

Satisfys all UK appointed inspectorates.

Meets applicable requirements for British and European standards and HSE.

Fulfils the verification requirements for continuity and insulation instruments.

Including competent persons requirements as detailed in UK Building Regulations.


Credit card sized it is the smallest and most cost-effective professional solution available.


All professionals working in the electrical environment must test and verify their installations as both safe and correct. This is achieved by measuring the insulation and continuity of the installation using calibrated and accurate instruments.

The accuracy and serviceability of the instrument when returned from periodic calibration will state it was within calibration parameters; but only at that time only. it certainly could not guarantee that the instrument or its leads and probes would still be fit for purpose at any time after that.

The CalCard® provides the solution. Verifying the serviceability and ongoing accuracy of an instruments ability to make the same truthful resistance readings throughout the time between these formal calibrations period.

In the UK this monthly procedural test became an integral part of the compliance requirements for electricians with all industry regulatory, health and safety bodies.

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5/5
Five Stars
Posted by GAry Bowles (Amazon) on October 23, 2016

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

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5/5
It's what you need.
Posted by stevefiler0 (eBay) on October 5, 2016

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

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5/5
does what says on the card
Posted by Gary (Supplier) on January 1, 2014

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

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