功能 | 量程 | 基本精度 | DY30-1 | DY30-2 | DY30-3 | 测定额定电压 | 250/500/1000V | √ | | | 500/1000/2500V | | √ | | 15/50/100V | | | √ | 电阻 | 2M/20M/200M/2000MΩ | ±(3%+2) | | | 20M/200M/2000M/20GΩ | | ±(3%+2) | | 100MΩ | | | ±(3%+2) | 交流电压 | 700V | ±(1.5%+5) | ±(1.5%+5) | ±(1.5%+5) | 自动量程 | | √ | √ | √ | 功能符号显示 | | √ | √ | √ | 数据保持 | | √ | √ | √ | 低电阻蜂鸣显示 | | √ | √ | √ | 电池欠压提示 | | √ | √ | √ | 电源 | 1.5V电池(UM3) | √ | √ | √ | LCDzui大显示 | 1999 | √ | √ | √ | LCD视窗窗尺寸 | 26×62mm | √ | √ | √ | |