Calibration in 3 days.
Or you don't pay.
Fast, reliable calibration with a guaranteed 3-day turnaround. Included as standard at no extra charge.
We're confident in our process.
So confident that if we can't deliver in 3 days, you don't pay.
Calibration in 3 days.
Or you don't pay.
Fast, reliable calibration with a guaranteed 3-day turnaround. Included as standard at no extra charge.
How the 3-or-free guarantee works.
We process your equipment as soon as it arrives. Once checked in, the 3-day clock starts. If we miss the deadline, your calibration is free - no questions asked.
Day 1
Equipment received & checked in.
Day 2
Calibration completed.
Day 3
Dispatched back to you.
25+
calibration engineers
80k
calibrations performed per year
30+
years calibration experience
ISO 9001
quality assured since 1992
Included as standard.
No extra fees.
The guarantee applies to all eligible standard calibrations. No premium service tiers. No added costs. Just fast, dependable turnaround.
Standard calibration
All routine calibration work carried out by our trained technicians using certified equipment.
3-day turnaround
We process, calibrate, and dispatch your equipment within three working days from check-in.
Free if we miss it
If we fail to meet the 3-day window, the calibration cost is automatically waived.
Coverage at a glance
We can calibrate all standard instruments under the guarantee, with the only exceptions being specialist items that need external or manufacturer service.
Eligibility
- Standard calibration items
- Equipment booked in with correct paperwork
- Valid PO or payment info supplied
Exclusions
- Repairs requiring parts
- Highly specialised or non-standard equipment
- Delays caused by incomplete information
Which products are eligible in 3 or free?
Electrical
Multimeter
Clamp Meter
Multifunction Tester
Loop Tester
Insulation Continuity Tester
Cable Fault Locator
Cable Identifier
Phase Comparator
Electrical Tester
Proving Unit
Pathfinder
Phase Rotation Meter
Insulated Pole
HV Insulation Tester 5,10,15 KV
Low Resistance Ohmeter
Microhmeter
Cable Height Meter
Earth Tester
Resistance Box
Check Meter
Partial Discharge Meter
Power Quality Analyser
Cable Test Set
Relay Test Set
Current Injection Test Set
Battery Ground Fault Tracer
Protection Test Set
Circuit Breaker Tester
Capacitance Meter
Switchgear Analyser
Function Generator
Scopemeter
Oscilloscope
Power Supply
Turn Ratio Meter
HV Test Set
HV Indicator
HV Detector
Cross Arm Leakage Tester
Live Line Tester
AC/DC Test Set
Kilovolt Meter
EZ Thump
PAT
- PAT Tester
Gas
Anton Sprint Pro
Anton Evo
TPI DC710
TPI 709R
TPI 712R
TPI 716R
TPI 717R
Testo 327-1
Testo 310
Testo 330-2
Testo 320
Testo 300
Gas Leak Detector
Gas Refilling Device
Pressure
Pressure Calibrator
Manometer
Pressure Indicator
Pressure Gauge
Pressure Module
Pressure Test Set
Pressure Meter
Barometer
Environmental
PH Meter
Conductivity Meter
Light Meter
Solar Meter
Humidity Probe
Sound Meter
Laser Distance Meter
Moisture Test Set
Data Logger
Thermal
Thermal Camera
Temperature Probe
Temperature Calibrator
CAT & Genny
CAT and Genny
Cable Sniffer
Transmitter and Receiver
Powering precision for thousands of professionals across the UK
Speedy calibration
Hassle-free
Accredited calibration
Experienced specialists
Nationwide service area
Minimised downtime
Trusted by leading brands to deliver top quality calibration
With over 20 years’ experience, Test4Less provides professional calibration services for equipment for the industry’s top manufacturers. From multimeters to gas analysers, we ensure your instruments are performing accurately and reliably. Our team works with brands such as Megger, Fluke, Testo, FLIR, and more – giving you confidence that your tools are in safe hands.
