Feature:1. WIRING INSTRUCTIONS: The inner covers are marked with wiring diagrams, so there's no need to worry about not connecting anymore. Very user friendly design.2. WATERPROOF TANK DESIGN: The outer box is designed as a waterproof box, with a closed lid that is waterproof and shockproof. Easy to store, has a hard shell, is resistant to bumps, and is more user friendly.3. HD LCD DISPLAY: Resistance meter can be seen at a glance, with all functions displayed on the same screen and rich color design, making it look very comfortable.4. ABS MATERIAL: Made of premium ABS material, this resistance tester kit is wear resistant and scratch resistant for long term use.5. LOW BATTERY INDICATOR: The resistance tester features a low battery indicator so that you can ensure your tester is always charged and able to use. There is also an automatic shutdown function to save power.Specification:Item Type: Digital Resistance Tester Material: ABS Mode: ETCR3520Rated Voltage: 50V, 250V, 500V, 1KV, 2.5KV, 5KVOutput Voltage Accuracy: (5% to 10%) 10VInsulation Resistance Range: 0.005M to 10.0T Short Circuit Current: Greater than or equal to 7mAVoltage Test Range: DC: 0V-800V; Accuracy: 5% rdg 3vAC: 0V-700V;Accuracy: 5% rdg 3vWorking Power Supply: Rechargeable lithium battery 6200mAh x 1 (shipped with built in battery)Adapter Plug: AC100-240V Polarization Index Test: YesAbsorption Ratio Test: YesRamp Test Mode: Test in steps of 10% of the preset voltage until the preset voltage is reachedFilter Test Mode: four options: 10S, 20S, 30S, 40SVoltage Test Range: AC DC: 0V-1000V; Accuracy 5% rdg 3VCapacitance Testing Range: 10nF-200uF, accuracy 10% rdg 10nFReal Time Current Display Test Current Value, Current Display Range: 0.001nA-7.5mAVoltage Monitor: Monitors the voltage of the tested object, monitors the discharge status after testing, and prohibits testing when the voltage is greater than 36V to defend instruments and operatorsCustom Setting Time: 10s to 3600sTest Timer: Automatically record test time, timing range 0s to 9999sUpload Function: Upload the stored test data to the computer through a USB communication cable.Battery Level Display: There is a battery level display, reminding timely charging when the battery voltage is lowAutomatic Shutdown Function: Automatically shut down after 15 minutes of power onProtection Level: Close the cover IP65, open the cover IP40Working Environment: -20 to 50 ; 80% rhStorage Environment: -25 to 65 ; 80% rhInsulation Resistance: 50M (1000v) (between the test line and the shell)Suitable Safety: AC 3kV 50Hz 1min (between test circuit and enclosure).Package List:1 x Insulation Resistance Tester 1 x Power Plug 1 x Adapter 1 x USB Data Cable 3 x Test Line 1 x Measuring Pencil 1 x Crocodile Clip 1 x Hook 1 x Cloth Bag 1 x Manual 1 x Accessory