The new Fluke TL175 TwistGuard test leads are the world's only test leads with adjustable tip length for safe working in different environments. By simply twisting the test lead, the user can change the length of the protruding test tip from 19 mm to 4 mm. Patented extendable tip sheath that meets the latest safety requirements to shorten the protruding tip while providing the versatility required for most measurements. New WearGuard test lead wear indicator. Each test lead is insulated with two layers of silicone, the inner contrast color becomes visible when the lead is nicked, scratched or otherwise damaged and needs to be replaced. Double insulated silicone test leads. TL175 withstands high temperatures and remains bendable at low temperatures. Extra heavy-duty strain relief on both the tip and plug, tested for over 30,000 bends without failure. Universal input plug fits all instruments that use standard 4mm shielded banana plugs. Rated for: CAT II 1000V, CAT III 1000V, CAT IV 600V, max 10A, pollution degree 2. TL175E includes removable, sharpened 4mm banana plugs, allowing the instrument to be used in a wide range of applications. Probes always indicate the correct category specification of the tip used. Environmental specification: -20°C to 55°C, altitude: 2000m. Conforms to the new safety standard EN61010-031: 2008, which is applicable since March 1st, 2011.