Kincrome Combination Gear Spanner 15 16" vendor_DEOXIT is more than 150 hours Length:350mm is more than 150 hours Automatic shut down Meter automatically shuts down after 15 minutes of inactivity Safety and Environmental Specifications General safety IEC 61010 1: Pollution Degree 2 Measurement safety IEC 61010 2 032: CAT III 600 V CAT IV 300 V Operating temperature 10 °C to +50 °C Storage temperature 40 °C to +60 °C Operating humidity Non condensing (<10 °C) 90% relative humidity (10 °C to 30 °C) 75% relative humidity (30 °C to 40 °C) 45% relative humidity (40 °C to 50 °C) Protection class IEC 60529: IP30 (jaw closed) Operating altitude 2000 m Storage altitude 12000 m Current sensor action category IEC 61557 13: Class 1 Fluke 377 FC Non Contact Voltage True RMS AC DC Clamp Meter Thinner open end for hard to reach fasteners Kincrome Gear Spanner ratcheting ring end has a Peripheral Drive™ configuration that virtually eliminates the rounding off of fasteners