The UNI-T UT521 earth tester measures earth resistance and AC earth voltage for both 2-wire and 3-wire measurements, with manual range selection and data hold function. It has a backlit LCD display, double insulation protection and can perform both simple 2-wire and precise 3-wire measurements.
The UNI-T UT521 earth tester measures earth resistance and AC earth voltage for both 2-wire and 3-wire measurements, with manual range selection and data hold function. It has a backlit LCD display, double insulation protection and can perform both simple 2-wire and precise 3-wire measurements.





The UNI-T UT521 earth tester measures earth resistance and AC earth voltage for both 2-wire and 3-wire measurements, with manual range selection and data hold function. It has a backlit LCD display, double insulation protection and can perform both simple 2-wire and precise 3-wire measurements.
Guarantee
24 month
Delivery from Europe in
15 - 16
business days
The UNI-T UT521 earth tester measures earth resistance and AC earth voltage with manual range selection and data hold function. It has a backlit LCD display, double insulation protection and can perform both simple 2-wire and precise 3-wire measurements.
Features | |
|---|---|
| Product Type | Earth Testers |
| Product Brand | UNI-T |
| Model | UT521 |
Specifications | |
| Earth Resistance Measurement | 0~20 Ω, 0~200 Ω, 0~2000 Ω, 0~40 Ω, 0~400 Ω, 0~4000 Ω |
| AC Earth Voltage Measurement | 0~200V, 0~400V |
| Frequency | 50Hz / 60Hz |
| Display Digits | 2000 |
| Data Memory | 20 sets |
| Power Source | 6 × 1.5 V battery (LR6) |
| Weight | 560g |
| Dimensions | 160 × 100 × 70.5 mm |
Technical Data | |
| Manual Range Selection | Support |
| Automatic Shutdown | Support (about 10 minutes of inactivity) |
| Low Battery Indicator | Integrated |
| Data Storage Function | Support |
| LCD Screen Backlight | Integrated |
| Double Insulation Protection | Support |
Included Accessories | |
| Include |
|
| Height | 150mm |
| Length | 250mm |
| Weight | 800g |
| Width | 200mm |