Digital Earth Ground Resistance Tester Double Insulated



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Digital Earth Ground Resistance Tester Double Insulated


  • Capable of measuring earth resistance across three ranges: 0-20Ω/0-200Ω /0-2000Ω
  • Capable of Measuring AC earth voltage from 0-200V
  • With backlight and 2000 count LCD
  • Rotary dial testing selection and clearly labelled ports for V, E, P and C connections
  • Manual ranging tester
  • Automatically powers off after10 minutes of inactivity to conserve battery life
  • Low battery indicator
  • Data hold function temporarily stores last value taken
  • Limited memory stores up to 20 records
  • Double insulation protection
  • 2-wire and 3-wire testing procedures possible
  • CAT III 600V  Safety 
  • Full Icon Display
  • Frequency: 50Hz/60Hz



Earth Resistance (Ω):
Ω-20Ω   ±(2%+10)
Ω-200Ω   ±(2%+3)
0-2000Ω   ±(2%+3)
AC Earth Voltage (V):
0-200V   ±(1%+4)
Frequency: 50Hz/60Hz
Manual Range
Auto Range
Auto Power off:Around 10 Minutes  
Low Battery Indication
Data Storage:20
LCD Backlight
Full Icon Display
Double Insulation Protection
Contact Badness Display:Port C or Port E don`t contact Display"----Ω"
Over-Range Display:Display “OL"
Simple 2-Wires Testing
Precision 3-Wires Testing
Power:1.5V Alkaline Batteries(LR6)X 6(not included)
Product Color:Red and Grey
Item size:147x97x70mm
Item weight:423g

Package List:
1 * UNI-T UT521 Earth Resistance Tester
1 * green test lead
1 * yellow test lead
1 * red test lead
2 * auxiliary earth stakes
1* simple test lead with alligator clips
1 *carrying bag 
1 * English Manual
1 * Chinese Manual
Note: The package doesn't included any batteries


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Thursday 08 November, 2018

This product was added to our catalog on Thursday 08 November, 2018.