技术参数: HCH-2000B 测量范围:1.0-200mm 声速范围:1000-9990m/s 显示精度: 0.1mm 校准值自动记忆 自动背光 塑料机壳 外型尺寸:60*125*26mm SPECIFICATIONS: Measuring Yange:1.0-200mm Sound speed stting Yange: 1000-9990m/s Show precision:0.1mm collate the worth automatic memory the back the light automatically Plastics machine hull External dimensions:60*125*26mm