
Hdgk Advanced 4-Terminal Ground Resistance Meter Tester with 0-19.99V AC Voltage Range Earth Resistance Tester 8xaa Battery Powered, 1-Year Warranty Included. 1-Year Warranty Coverage: Includes free parts replacement for non-man-made damage within the first year. Advanced Anti-Interference: Phase-locked loop and switched-capacitor filtering suppress power frequency and RF interference. Versatile Testing Capabilities: Measures grounding resistance, soil resistivity, low-resistance conductors, and AC ground voltage. Dual Power Supply Options: Operates on 8 AA batteries or AC 220V/50Hz for flexible field and lab use. Durable Aluminum Casing: High-strength aluminum alloy structure ensures robust protection for internal components. Global Technical Support: Engineers available for on-site support and quick response for international clients.