Blog
Need a clamp meter for consumer unit UK callouts where jaws barely fit? What 20 mm jaws, True RMS and a back clip change when LED drivers make average-responding meters lie.

AC-Only vs AC/DC Clamp Meter UK: Which Do You Actually Need?
Compare AC-only vs AC/DC clamp meters in the UK: when DC and milliamp capability matter, when AC-only is enough, and what to check before you buy.

clamp meter reads zero both wires in jaw
Why a clamp meter reads zero both wires in jaw: live and neutral cancel. Use the single conductor clamp rule, a UK safety checklist, then check ACM92 details.

First day with clamp meter known load: practice on a UK socket
Plan your first day with clamp meter known load practice on a simple UK socket appliance: inspect, zero DC when needed, clamp one conductor, and know when to stop.

How to zero dc clamp before measuring: uK First-Use Checklist
Learn how to zero a DC clamp before measuring: empty-jaw zero, offset tips for milliamp drains, single-conductor rule, and when to stop. UK first-use checklist.

Prove-Dead vs NCV/V-Alert Honesty UK: What a Clamp Screen Is Not
UK honesty guide: NCV/V-Alert screens; prove-dead needs isolation and competence. What clamps can and cannot confirm, with HSE-framed expectations.

will 20mm jaw fit leisure battery cable
Measure leisure battery cable OD before you buy. Learn when a 20mm jaw clamp fits, when to hire a larger jaw, and where to check ACM92 capacity.