TwistGuard Test Leads Patented extendable tip shroud that meets new electrical safety requirements to reduce tip exposure while providing the versatility needed for most measurements. New WearGuard™ lead wire wear indication. Each test lead is covered by two layers of silicone insulation; inner contrasting color is exposed when the leads are nicked, scuffed, or otherwise damaged and in need of replacement. Double insulated silicone leads. TL175 withstands high temperatures and remain flexible in cold temperatures.. Extra-heavy strain relief on both probe-end and plug-end, tested beyond 30,000 bends without failure.. Universal input plugs compatible with all instruments that accept standard 4 mm shrouded banana plugs. TL175E also available. Includes removable 4 mm lantern tips for versatility. Probes always show correct category rating for tip being used. Environmental ratings: -20 °C to 55 °C (-4 °F to 131 °F), altitude: 2000 m (6,562 ft). Conforms to EN61010-031. One-year warranty TL175