VAT:
Electrical4less Logo

Single Function Testers

Find a range of single function testers designed for specific electrical testing needs. Perfect for both professionals and DIY enthusiasts, our testers provide accurate and reliable results for tasks like voltage detection, continuity testing, and more. Shop now to enhance your electrical toolkit.

TIS 819 Voltage Tester

TIS 819 Voltage Tester

1 in stock
More available within 1 - 3 working days *
SKU: TIS 819
£21.60 £19.01
TIS PU1 Proving Unit for All Voltage Testers 0 - 690V

TIS PU1 Proving Unit for All Voltage Testers 0 – 690V

5 in stock
More available within 1 - 3 working days *
SKU: TIS PU1
£54.00 £47.52
CK Tools 440005 Mains tester - 120-250V AC

CK Tools 440005 Mains tester – 120-250V AC

6 in stock
More available within 1 - 3 working days *
SKU: 440005
£3.82 £3.29
CK Tools 440007 VDE Mainstester Pocket Clip

CK Tools 440007 VDE Mainstester Pocket Clip

4 in stock
More available within 1 - 3 working days *
SKU: 440007
£2.11 £1.81

Kewtech KEW4200 Digital TRMS Earth Resistance Clamp Meter

Delivery usually within 1 - 3 working days *
SKU: KEW4200
£729.00

Kewtech Digital Earth Resistance Tester

Delivery usually within 1 - 3 working days *
SKU: KEW4105A
£283.50

Kewtech Digital Loop/ PSC Tester

Delivery usually within 1 - 3 working days *
SKU: KT400
£321.30

Kewtech KT500 Digital RCD Tester

Delivery usually within 1 - 3 working days *
SKU: KT500
£321.30

Kewtech Single Function Test Kit

Delivery usually within 1 - 3 working days *
SKU: KT18A
£906.66

Kewtech KT300DL Digital Insulation / Continuity Tester 50V-1000V AC

Delivery usually within 1 - 3 working days *
SKU: KT300DL
£321.30
© 2026 Electrical4less
We accept Visa We accept Mastercard We accept Maestro We accept PayPal We use Amazon Pay We use Apple Pay We use Google Pay