Digital Multimeter Backlit Digital Display Yes Bluetooth Compatible Yes CAT Safety Rating CAT III 1000V CAT IV 600V Calibration Certificate None Capacitance Auto Discharge Yes Display Type Digital Dustproof Yes Greater Than 30V Warning Yes Includes (6) AAA Batteries Test Probes with Clips Insulation Limit Alarm Yes Maximum Insulation Resistance 20 gigohm Minimum Insulation Resistance 4 megaohm PI/DAR Testing Yes