UNI-T UT501A 1000V esr meter megger earth ground Insulation resistance meter Tester Megohmmeter Voltmeter w/LCD Backlight

Features:
Display Count: 2000
Automatic measurement: √
Low Battery Indication: √
LCD Backlight: √
Alarm Light Display: √
Alarm Buzzer: √
High Voltage Indication: √
Over Load Indication: √
Auto Disharge: √
Test Voltage Vice Display: √
10MΩ Internal Resistance Test: √
Specifications:
Model: UT501A
Insulation Resistance(Ω): Test Voltage: 100V/250V/500V/1000V 0%~10%
100V: 0.00MΩ~100MΩ ±(3%+5)
250V: 0.00MΩ~99.9MΩ ±(3%+5) ; 100MΩ~5.5GΩ ±(5%+5)
500V: 0.00MΩ~99.9MΩ ±(3%+5) ; 100MΩ~5.5GΩ ±(5%+5)
1000V: 0.00MΩ~99.9MΩ ±(3%+5) ; 100MΩ~5.5GΩ ±(5%+5)
Load Current: 50V(R=50KΩ) 1mA  0%~10% ; 100V(R=100KΩ) 1mA 0%~10% ; 250V(R=250KΩ) 1mA 0%~10%
500V(R=500KΩ) 1mA 0%~10% ; 1000V(R=1MΩ) 1mA 0%~10%
Short Circuit Current: <2mA
AC Voltage (V): 30V~750V ±(2%+3)
General Characteristics:
Power: 6 * 1.5V Alkaline batteries (not included)
LCD Size: 65mm x 27mm
Product Net Weight: 500 g
Product Size: 150mm * 100mm * 71mm
Product Color: Red and Grey
Package Size: 18.5 * 15 * 9cm / 7.3 * 5.9 * 3.7in
Package Weight: 700g / 1.5lb
Package List:
1 * UNI-T UT501A Insulation Resistance Meter
1 * Pair Test Lead
1 * Pair Alligator Clips
1 * Carrying Bag
1 * English Manual