We're donating to the NHS

To show our appreciation for the NHS we will make a donation to the NHS charity for every PrimeTest or Apollo PAT tester bought and registered between the 1st June to 31st July 2020.

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HAL 103 Output Box


It's advised that you have your HAL 103 Output Box calibrated every 12 months to ensure its accuracy, or you may be unfortunate and have to have your HAL 103 Output Box repaired.

Calibrate your HAL 103 Output Box

If you wish to calibrate your HAL 103 Output Box, please locate the nearest service center or contact us directly using the link below.
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