CK-Voltage-Detector-CK-Tools-T2271-The-CK-T2271-Non-Contact-Voltage-Detector-is-ideal-for-contact-free-AC-voltage-tests-e-g-earthing-&-grounding-connection-checks-correct-connection-checks-broken-wire-detection-etc-&-produces-bright-red-LED-illumination-when-it-detects-an-AC-voltage-It-is-double-insulated-to-ensure-safe-use-near-live-circuitry-&-has-an-ergonomic-dual-component-body-construction-with-a-handy-pocket-clip-C-K-Non-Contact-Voltage-Detector-Visual