Sealey-Open-Short-DC-Circuit-Detector-Sealey-FF400-p-Find-short-&-open-circuits-fast-&-easily-Simply-attach-the-sender-unit-to-the-circuit-&-follow-the-wires-using-the-detector-Ideal-for-automotive-repairs-Suitable-for-all-DC-circuits-up-to-42V-Supplied-in-storage-case-Powered-by-two-9V-batteries-p-div-table-tr-td-Model-No-td-td-FF400-td-tr-tr-td-Nett-Weight-td-td-0-32 Kg-td-tr-table-div-Sealey-FF400-Open-&-Short-DC-Circuit-Detector