Draper Expert is the professional-grade tier of the Draper Tools range — tools specified for daily trade use, with tighter tolerances, stronger materials and designs that stand up to the workshop floor. Draper Expert Relay Tester - RT-100 The Draper Expert Relay Tester - RT-100 (Part Number: RT-100) is a genuine Draper Expert product, supplied through official UK distribution. .lb-img-strip{margin:14px 0;display:flex;flex-wrap:wrap;gap:8px;justify-content:center;}.lb-img-cell{flex:0 0 auto;width:calc(33.3% - 8px);max-width:140px;border:1px solid #dce3eb;border-radius:6px;background:#fff;padding:6px;box-sizing:border-box;}.lb-img-cell img{width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;display:block;}@media (hover:hover){.lb-img-cell:hover img{transform:scale(2);transition:transform .25s;}} Relay tester. Used to check 4 and 5 pin electro-mechanical relays. Operated by a 12V vehicle supply. Specifications Brand Draper Expert Manufacturer Part Number RT-100 MPN RT-100 EAN 5010559662494 GTIN 5010559662494 Type DRAPER Item Weight 0.533 kg Custom Bundle No Application Automotive Condition New Downloads Instructions Manual Technical Datasheet Cert Uk Ca Cert Ce Why Choose Draper Expert?Draper's professional specification, built for daily trade use. Trade-grade materials — chrome vanadium, forged and hardened components across the range. Genuine Draper quality — backed by a family tool business established in 1919. Full technical data — sizes, part numbers and specifications on every listing. Product VideoYour browser cannot play this video. About Draper ExpertDraper Expert sits at the professional end of the Draper Tools family — the specification chosen by mechanics, engineers and site trades who use their tools every day. Drawing on more than a century of Draper tool heritage, the Expert range covers hand tools, sockets, cutting and workshop equipment engineered for durability and accuracy. .ds-53fd248c{margin:20px 0;padding:14px;background:#fafafa;border:1px solid #e5e7eb;border-radius:8px;}.ds-53fd248c h3{font-size:15px;color:#003366;margin:0 0 10px 0;}.ds-53fd248c-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;}.ds-53fd248c-cell{border:1px solid #dce3eb;border-radius:6px;overflow:hidden;background:white;display:block;color:inherit;text-decoration:none;}.ds-53fd248c-cell img{width:100%;height:auto;display:block;transition:transform .2s;}@media (hover:hover){.ds-53fd248c-cell:hover img{transform:scale(1.05);}}.ds-53fd248c-foot{font-size:11px;color:#666;margin-top:10px;line-height:1.5;}.ds-53fd248c-lb{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.92);z-index:9999;text-align:center;padding:20px;box-sizing:border-box;}.ds-53fd248c-lb:target{display:block;}.ds-53fd248c-lb img{max-width:96%;max-height:88vh;height:auto;width:auto;border:2px solid white;background:white;}.ds-53fd248c-lb .close{position:absolute;top:14px;right:24px;color:white;font-size:32px;font-weight:bold;text-decoration:none;line-height:1;}.ds-53fd248c-lb .nav{position:absolute;top:50%;transform:translateY(-50%);color:white;font-size:48px;text-decoration:none;padding:10px 20px;font-weight:bold;}.ds-53fd248c-lb .prev{left:10px;} .ds-53fd248c-lb .next{right:10px;}.ds-53fd248c-lb .label{position:absolute;bottom:14px;left:0;right:0;color:white;font-size:13px;text-align:center;font-family:sans-serif;}
