Description
Product: UNI-T Digital Earth Resistance Tester (UT521)
Brand: Uni-T
Model: UT521
Specifications:
- Earth resistance: 0~20Ω ±(2%+10), 0~200Ω ±(2%+3), 0~2000Ω ±(2%+3)
- AC earth voltage: 0~200V ±(1%+4)
- Frequency: 50Hz/60Hz
- Display count: 2000
- 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
- Power: 1.5V battery (LR6) x 6
- Display 70.6mm x 34mm
Key Features
- Professional digital earth resistance tester
- Designed for measuring grounding/earth resistance
- Supports 2-wire and 3-wire earth resistance measurement
- Clear digital display for convenient reading
- Easy-to-use operation for field testing
- Suitable for electrical installation and maintenance work
- Useful for checking the condition and effectiveness of grounding systems
- Compact and portable design for on-site testing
- Built-in safety and testing functions for reliable operation
- Ideal for electricians, electrical contractors and maintenance technicians



