Features:

• Utilizes clamp method, three-four-wire method, and selection method for versatile grounding resistance testing.
• Measures AC current (0.000mA–60.0A), ground voltage (1.00V–600V), and soil resistivity (0.00Ωm–9999kΩm).
• Equipped with a 2.4-inch color LCD screen (46mm×29mm) for clear data visualization.
• Supports Bluetooth connectivity and USB data upload for wireless communication with PCs/mobile devices.
• Built-in rechargeable 3.7V lithium battery with real-time power indicator and low-battery warning.
• Includes a 68mm clamp jaw for non-invasive loop resistance measurements.
• Stores up to 500 datasets with overflow ("FULL") indication and data deletion capability.
• Complies with IEC61010-1 safety standards (CAT III 300V, CAT IV 600V) and IEC61557-1 for grounding resistance.
• Features an automatic shutdown function (15-minute timeout) and adjustable backlight brightness.
• Robust design (273×106×53mm, 975g) with dust-proof, moisture-proof, and shock-resistant construction.

Functions:

• Measures loop resistance via clamp method (0.02Ω–2.00kΩ) without disconnecting the grounding system.
• Performs precise soil resistivity measurements using the 4-pole method (Winner method).
• Tests single-point grounding systems via two-point or three-point methods using auxiliary electrodes.
• Provides AC current measurement (True RMS) and ground voltage measurement (average value).
• Enables alarm thresholds for resistance, current, and voltage with audible/visual alerts.
• Stores and queries measurement data via the "Data Query" interface, supporting batch deletion.
• Synchronizes time and updates firmware via USB or Bluetooth using dedicated PC/mobile apps.
• Adjusts soil resistivity measurement depth (1m–100m) and calculates results via ρ=2πaR.
• Supports multi-point and limited-point grounding system analysis with software-assisted solutions.
• Includes manual data hold ("HOLD") and automatic range shifting for simplified operation.

Specifications: