Key Features:Compatible with Fluke Connect™ mobile app allowing you to see, save, and share data wirelessly via Android™ and iOS devicesSave time by trending data without leaving the field with Fluke Connect wireless capabilityWarning function alerts you to the presence of line voltage by providing readings up to 600 V AC or DC for increased user safetyUser-selectable test voltages provides added flexibility for multiple applicationsUnique user-defined labels of measurement stored in up to 99 locations for quick and easy recallLong battery life allows for extended field use (over 750 tests) between chargesAutomatic calculation of dielectric absorption (DAR) and polarization index (PI) with no additional setup increases productivityGuard system eliminates the effect of surface leakage current on high-resistance measurements ensuring measurement resultsNOTE: This item is a replacement of Fluke 1550C