AL-56FL is an ideal tool which shows the indication of     live voltage even with blown fuse.● 2 replaceable fast-acting fuses are built-in. The specs of     the fuses are 1000V, 11A with internal rating of  20kA     AC/DC.● Provide additional testing protection.● Help to prevent a possible mis-indication when there is     voltage present.● CAT III 1000V, CAT IV 600V, 10A with protective cover.● 2mm probe tips, removable 4mm brass caged banana     probe tips are also included.● Include High-quality silicone test leads, 1.5 meter long.● Wipe the fused test probes and silicone test leads     periodically with a damp cloth and detergent. Do not     use abrasives or solvents.● Operating temperature: -20 °C to +50 °C (-5 °F to 120 °F)● One year warranty● Can't be used on current mode with blown fuse.● Rating : EN 61010-031 CAT Ⅲ 1kV 10A / CAT Ⅳ 600V 10A