UNI-T UT521 Digital Earth Resistance Tester Earth Tester

UNI-T UT521 Digital Earth Resistance Tester

The UNI-T UT521 is a professional-grade digital earth resistance tester designed for measuring ground resistance and voltage in electrical installations. With its high accuracy and user-friendly interface, this device is essential for electricians, engineers, and technicians working in power distribution, telecommunications, and lightning protection systems.

Key Features:

✅ Accurate Earth Resistance Measurement – Measures earth resistance from 0Ω to 2000Ω with high precision.
✅ Earth Voltage Measurement – Measures ground voltage up to 100V AC for comprehensive testing.
✅ 2-Pole & 3-Pole Testing Modes – Supports different grounding system configurations.
✅ Large LCD Display with Backlight – Ensures clear readings in low-light environments.
✅ Data Hold & Auto Power Off – Saves battery life and retains measurements for easy reference.
✅ Overload Protection – Prevents damage to the device from excessive voltage input.
✅ Durable & Portable Design – Rugged construction with a carrying case for field use.

Technical Specifications:

• Earth Resistance Range:
  • 0Ω - 20Ω (±2% + 5 digits)
  • 0Ω - 200Ω (±2% + 5 digits)
  • 0Ω - 2000Ω (±2% + 5 digits)
• Earth Voltage Range: 0 - 100V AC (50/60Hz)
• Test Frequency: 820Hz
• Test Current: <2mA (safe for live circuits)
• Display: Large LCD with backlight
• Power Supply: 6 x 1.5V AA Batteries (included)
• Auto Power Off: Yes (after 10 minutes of inactivity)
• Operating Temperature: 0°C to 40°C (32°F to 104°F)
• Storage Temperature: -20°C to 60°C (-4°F to 140°F)
• Dimensions: 160mm × 100mm × 70mm
• Weight: 600g (including battery)

General Characteristics:

User-Friendly Interface – Simple button layout for quick and efficient operation.
High Accuracy & Stability – Ensures reliable earth resistance and voltage measurements.
Wide Application – Ideal for electrical grounding inspections, construction sites, and industrial facilities.
Safety-Compliant Design – Built-in overload protection to prevent damage from high voltages.
Portable & Durable – Comes with a protective case for easy transport and field use.

Package Includes:

✔ 1 x UNI-T UT521 Digital Earth Resistance Tester
✔ 2 x Earth Testing Wires (Red & Black)
✔ 2 x Auxiliary Earth Spikes
✔ 6 x 1.5V AA Batteries
✔ 1 x Carrying Case
✔ 1 x User Manual

The UNI-T UT521 is the perfect tool for professionals who require accurate and reliable earth resistance testing in various electrical applications. Its easy-to-use design, high precision, and field-ready durability make it an essential device for safe and efficient grounding system evaluations.

Order now and ensure your grounding systems meet safety standards with precision!