Smiths SR/D 380 instrument tester, very useful for testing Smiths (and British Jaeger) gauges and voltage stabilizers. This is the top of the range of these testers and can be used on 5, 6, 10, 12 or 24 volt gauges. Item has been fully tested so I can confirm it 'all' works correctly. Complete with leads, a copy of the original instruction booklet which is invariably missing and a replacement instruction label in the lid. All in excellent condition. .
