UNI-T UT521 maadoitustesteri

The UNI-T UT521 is a professional ground resistance tester designed for measuring ground resistance and soil resistivity. It is an essential tool for electricians, engineers, and maintenance personnel working on grounding systems in power distribution, telecommunications, and industrial applications. The device offers reliable and accurate measurements with a user-friendly interface.

Advantages

High accuracy and stability in ground resistance measurements. Easy to operate with a clear LCD display. Durable construction suitable for field use. Supports multiple measurement modes for versatile testing.

Suitable for

• Grounding system testing in power plants and substations
• Telecommunication tower grounding checks
• Industrial facility grounding maintenance
• Lightning protection system verification
• Soil resistivity surveys

Key specifications

• Brand: UNI-T
• Model: UT521
• Product colour: Red and grey
• Measurement range: 0-2000Ω
• Resolution: 0.01Ω (up to 20Ω), 0.1Ω (up to 200Ω), 1Ω (up to 2000Ω)
• Accuracy: ±2%+5 digits
• Test frequency: 128Hz
• Power supply: 8 x 1.5V AA batteries (not included)
• Display: LCD with backlight
• Overload protection
• Data hold function
• Low battery indication
• Auto power off

Recommendations

For accurate and reliable ground resistance testing, the UNI-T UT521 is a cost-effective solution. It is recommended for professionals who require a portable and easy-to-use instrument for routine grounding system checks and troubleshooting.