| 基本功能 | 量程 | 基本精度 | |
| 型号 | UT273 | UT275 | |
| 接地电阻 (Ω) | 0.01~0.099Ω | ±(1%+0.01) | ±(1%+0.01) |
| 0.1~0.99Ω | ±(1%+0.01) | ±(1%+0.01) | |
| 1.0~49.9Ω | ±(1.5%+0.1) | ±(1.5%+0.1) | |
| 50.0~99.5Ω | ±(2%+0.5) | ±(2%+0.5) | |
| 100~199Ω | ±(3%+1) | ±(3%+1) | |
| 200~395Ω | ±(10%+5) | ±(10%+5) | |
| 400~590Ω | ±(20%+10) | ±(20%+10) | |
| 600~1000Ω | ±(25%+20) | ±(25%+20) | |
| 泄漏电流 (A) | 0.00~299mA | ±(2.5%+2mA) | |
| 0.30~2.99A | ±(2.5%+100mA) | ||
| 3.00~30.0A | ±(2.5%+300mA) | ||