Free Delivery on orders over £75
(UK mainland only)

We ship our products around the world

100% Secure online payment methods

Data Protection
Registered Number : ZA279948

Free Deliveries on orders over £75 (UK mainland only)

We ship our products around the world

100% Secure online payment methods

Data Protection
Registered Number : ZA279948

Calibration Certificate

We provide a detailed Calibration Certificate with readings, all instruments are labelled as tested.

We offer FAST turnaround times and your machine calibration results are stored electronically on our system with backups.


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Usually ready for return within 3 days!

Traceable to International (Accreditation) Standards

All measuring equipment needs calibrating to ensure a precise, accurate result and the tools used in portable appliance and electrical testing are no exception. The IEE PAT Testing Code of Practice states that you should have your equipment calibrated at least once every 12 months, though tools that are used extremely frequently may require more regular calibration. It's also advised that any damaged equipment be calibrated immediately after repairs.

We here at Testermans understand how important it is for you to receive a fast, professional service; every day your tools are being calibrated is a day they're not in use, which is why we are confident we can offer to have your equipment calibrated and ready to ship within as little as three days of receipt!

So if you need your tools calibrating, look no further than Testermans. Just follow the three easy steps below and we can get to work calibrating your equipment ASAP!

STEP ONE - What do you need calibrating?

Testermans has a wide array of precise, professional-grade calibration tools capable of handling almost any piece of electrical testing kit - check out the table below to see what we can provide.

MultimetersFrom £45.00YES
Insulation / Continuity Testers£30.00
Loop Testers£30.00
RCD Testers£30.00
Calibration Checkboxes£35.00
Earth Resistance Meters£35.00
Multifunction Testers£49.00YES
Anemometers£45.00 (prices may vary)YES
Light Meters£45.00 (prices may vary)YES
Digital Thermometers£45.00 (prices may vary)YES
Infared Thermometers£45.00 (prices may vary)YES
Sound Level Meters£45.00 (prices may vary)YES
Phase Rotation Meters£45.00 (prices may vary)
Clamp Meters£45.00 (prices may vary)YES
Torque Wrenches to 1000lt / ft£45.00 (prices may vary)
Microwave Testers£80.00 (prices may vary)YES
Thermal Imaging Cameras£110.00 (prices may vary)
Decade Boxes£40.00 (prices may vary)
PAT Testers (Handheld / Battery Operated)£35.00
PAT Testers (Non-Handheld / Mains Operated)£50.00YES
PAT Testers (Seaward PT 300 & 350 | Apollo Range)£50.00
PAT Testers (With Flash Test)£55.00YES
Set of 3 - RCD | Insulation / Continuity | Loop Testers£70.00
Proving Units£15.00
Volt Sticks£10.00
Voltage Detectors£15.00


This voucher entitles the holder to a £10 discount from their next calibration of a
multifunction tester | single function tester | PAT tester.

"What about those annoying Service Screens?"

As licensed Seaward and Metrel dealers, we have access to the codes required to remove yearly "recalibration reminder screens" (The notifications that pop up on certain testers as reminders that they require calibration) from devices produced by both companies. With Testermans, you don't have to worry about your workflow being interrupted by annoying reminders for services you've already received!

"What about Password Resets?"

Just bought a tester off eBay and found you're locked out by a password you don't have? Or simply lost the code to a machine? Don't fret! As mentioned above, we're fully licensed dealers of both Seaward and Metrel and, therefore, have access to the reset codes needed to remove any obstructive passwords that may be blocking access to your machine.

STEP TWO - Delivery & collection options

Option 1 - Drop it off!

Get it free by dropping your equipment in and picking it up.


Option 2 - You send it to us! - £9.00 +VAT

Post your equipment to us and we will return it to you.


Option 3 - We collect and return!  - £30.00 +VAT

Call or email us to arrange collection and return of your equipment
(Shipping outside mainland UK may cost more, contact us for more details).

STEP THREE - Contact Testermans

"You're almost done?"

Simply contact us via phone or email with the details below and request a Calibration Request Form then sent it off to us, along with the items you want testing and their Test Leads (We cannot stress how VITAL the test leads are for Calibration), to included address. It’s as simple as that!

Please be advised that if you have a calibration discount voucher that you have received from a previous purchase from us please be sure to include it in the parcel with your tester that requires calibration when it is delivered to us. If the voucher is not provided with the tester before calibration we cannot offer the discount advertised.

See website Terms and Conditions for more details.