Sealey-Auto-Probe-with-LCD-Display-12-42V-Sealey-PP7-p-A-range-of-functions-allow-automotive-electricians-&-mechanics-the-ability-to-effectively-diagnose-short-circuits-&-bad-earths-The-4-6m-lead-connects-to-a-12V-battery-supply-&-reaches-to-all-areas-of-the-vehicle-Fly-lead-allows-continuity-&-polarity-testing-with-a-high-contrast-LCD-display-with-9mm-high-3V-to-42V-read-out-Activate-components-in-situ-or-prior-to-installation-Features-audible-&-positive-negative-voltage-ind