Tailored for power grid field patrol, GF302D1 minimum weight only 8kg up to max 22kg with multi-range options:0~6A/12A/20A/50A/120A current,0~300/380/500/600V voltage. Real-time vector diagram identifies wrong wiring instantly, 2~63rd harmonic spectrum checks grid distortion. Built-in 500-group data storage plus USB export, no external PC needed for standalone auto test, drastically shorten field meter checking cycle.
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