Duoyi Digital Earth Ground Resistance Tester - Dy4100

•  DUOYI DY4100 Digital Ground Resistance Tester can test earth resistance of various earth system including power systems, electric equipments, light conductors as well as resistance value of low resistance conductor and AC voltage test. 
• This one has more complete functions, higher accuracy, more convenient and reliable flor operation and more suitable for outdoor use with dust and proof structure. 

Accessories:

1. Auxiliary Earth bar
2. Testing Wires

Product Features:

1. Measuring range of earth resistance: 0.2000. 0/20/200/2000 ohm (2%+3) with 0.01 ohm
2. Measuring range of earth voltage 0.30V(3%+5) 
3. LED green light indicates normal operating mode
4. 31/2 digit LCD display for more direct and convenient reading. 
5. Low battery warning: on LCD indicates deficiency of 12V battery. LED red lighting off indicates deficiency of 1.5V battery
6. Fast Response: measure earth resistance, about 5 seconds, measure earth voltage about 2 seconds. 
7. Withstand voltage: AC 500V, 1 minute between circuit and outer casing. 
8. Overload protection: on the earth voltage, can withstand 300V AC 1 minute on the earth resistance, can withstand 200V AC 10 seconds. 
9. Power supply: six 1.5V AA batteries, one 12V battery 23A
10. Data holds: yes
11. Working LED indicator:yes

Specification:

• Earth Ground Resistance: 0/20/200/2000(2% +3) 
• Resolution: 0.01
• Earth voltage: 0-30V
• Data holds: yes
• Working LED indicator: yes
• Low battery warning: yes
• Working temperature: 0°C- 40°C relative humidity
• Storage temperature: - 10°C - 50°C relative humidity