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AR916香港希玛AR-916兆欧表|绝缘电阻测试仪 额定电压500V /1000V /2500V 精确度±5%rdg ± 5%dgtDC/AC电压测试30-600V分辨率1.0V过载保护AC 1200V /10 秒耐电压AC 8320V /5 秒绝缘阻抗1000MΩ /DC1000V 高压探棒√USB口传输√最大短路电流1.4mA极化指数√吸收比√
