Test pieces
Certified test pieces in ferrous, non-ferrous and stainless steel, in the sizes your HACCP plan specifies. Marked and traceable, as the standards require. Test stick kits are available for tunnel systems, and test ports can be specified on pipeline units so pieces go directly into the product stream.
Worn or unmarked test pieces are a classic audit finding. The sphere diameter and material have to be documented, and the piece has to be identifiable. Replacing them costs very little. Arguing about them with an auditor does not.
Test stick kits
You can also buy a complete test stick kit: a foam-lined case holding a full range of certified sticks, colour-coded by material — ferrous, stainless 304 and non-ferrous — in graduated diameters, with the certificates supplied on a USB stick in the lid.
It is the format most plants settle on for the routine test, for two reasons. Everything for every product programme is in one box rather than in three drawers, and each stick is marked with its own certificate number, so the entry in the test log points at a specific, traceable piece.
Buy certified test pieces in the Detectronic webshop
Test wands, flexible test wands, test balls and complete test stick kits are stocked and can be ordered directly, without waiting for a quotation. Ferrous, non-ferrous and stainless steel are all available, in sphere diameters from 1.0 mm to 12.0 mm, and every piece is supplied with its own certificate for your verification records.
Browse certified test pieces Test stick kit
Prices, stock and delivery are shown in the shop. If you are unsure which diameter or material your procedure calls for, call us before you order — it takes a minute and saves a return.
Test piece questions we are asked most
What is a metal detector test piece?
A certified metal sphere of a known diameter and material, held in a wand or supplied as a free-running ball, used to prove that a metal detector still detects contamination at the sensitivity your quality plan requires.
Which metals do I have to test?
Ferrous, non-ferrous and stainless steel. The three behave differently in the detector field, so a pass on one does not demonstrate performance on the others. Most verification plans require one test piece of each.
What diameter should I use?
The size named in your HACCP or BRCGS plan. Where none is named, use the smallest sphere the detector reliably found at commissioning and keep using that size, so results stay comparable over time.
When should a test piece be replaced?
When the rod or carrier is cracked, when the sphere is loose or exposed, or when the certificate has expired under your own procedure. A damaged test piece invalidates the check it was used for.
Does each test piece come with a certificate?
Yes. Every piece is supplied with its own certificate identifying the sphere diameter and material, which is the document an auditor will ask to see.
Just call or write — it is faster than a form
We do not run a webshop for test pieces, because the right answer depends on your detector, your critical limits and the standard you are audited against. A two-minute conversation gets it right first time.
+45 96 66 30 60
Monday to Friday, Danish office hours. Ask for test pieces and have your detector type ready if you can.
Email usservice@detectronic.com
Tell us the materials and diameters you need, or send us your current test protocol and we will tell you what it calls for.
We supply test pieces for our own equipment and for other manufacturers' detectors.
Related: How often you have to test, and what auditors ask · Calibration and validation