Digital Earth Tester

UT520 series can perform precise 3-wire and simple 2-wire earth resistance measurement for power and electrical systems, lightning protection equipment, and ground system of all electrical equipment. This series is UNI-T’s introductory earth resistance tester with high economic value. Its lightweight design is convenient for fieldwork. Models in UT520 Series: UT521, UT522

• Certificates: CE, UKCA
• Manual range
• Low battery indication
• Data hold
• LCD backlight/auto power off
• Full icon display
• Double insulation protection
• Poor contact display: “…O”
• Over-range display: Display “OL”
• Simple 2-wire testing
• Precise 3-wire testing