Best Electrical Supplies — Martindale (2026)
1 electrical supplies matching brand “Martindale”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Circuit Tester UK guide.
£34.99
Pros
- GS38-compliant fuseless design gives instant AC/DC voltage indication
- Four-stage LED display shows voltage bands from 50V to 400V
- Trusted by UK electricians for safe isolation checks
Cons
- Should be used with a proving unit to confirm it is working correctly