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.
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UT520 Series Digital Earth Testers
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
Description
Features of UT520 Series Digital Earth Testers
Certificates: CE, UKCA
● Manual range
● Low battery indication
● Data hold
● LCD backlight/auto power off
● Full icon display
● Double insulation protection
● Poor contact display: “…Ω”
● Over-range display: Display “OL”
● Simple 2-wire testing
● Precise 3-wire testing
UT521/UT522 | Datasheet
UT521 | User Manual