LED colors show fuse condition instantly: green (no draw), yellow (active draw), red (open circuit)-easy and accurate monitoring at a glance Works with most blade-style fuses in cars, RVs, boats, and more-ensuring versatility and reliability for all your diagnostic needs Detect battery drain in seconds without removing fuses or resetting modules-essential for quick and efficient vehicle diagnostics Built-in LCD provides real-time readings from 1-80A. The rotatable screen ensures full viewing angles without disconnecting circuits-ideal for pros Compact 8inch design with easy-grip housing fits tight fuse panels; weighs only 2.8 oz-perfect for handheld use during mobile or shop repairs, Manufacturer: Akfldms