Features and Advantages
1. Wide grounding circuit resistance measurement range (0~1200 Ω), which can meet the measurement requirements of the user
2. 32mm into the jaw, can test various grounding levels and equipotential bus
3. The AC current measurement range is 0-20A, and leakage current detection can be carried out, which can be measured without disconnection. It is very suitable for system fault diagnosis
4. User defined HI/LO alert limits
5. Data retention function for obtaining stable readings in inaccessible places
6. Time-saving storage function is convenient for users to check the test data and draw table reports after measurement
Parameter
| Model | Resistance range | Current range |
| UT276A+ | 0~500Ω | |
| UT278A+ | 0~1200Ω | 0~20A |
| Measurement mode | Measuring range | Resolving power | Accuracy |
| Resistance | 0.010~0.099Ω | 0.001Ω | ±(1%+0.01Ω) |
| 0.1~0.99Ω | 0.01Ω | ±(1%+0.01Ω) | |
| 1~49.9Ω | 0.1Ω | ±(1%+0.1Ω) | |
| 50.0~99.5Ω | 0.5Ω | ±(1.5%+0.5Ω) | |
| 100~199Ω | 1Ω | ±(2%+1Ω) | |
| 200~395Ω | 5Ω | ±(5%+5Ω) | |
| 400~590Ω | 10Ω | ±(10%+10Ω) | |
| 600~880Ω | 20Ω | ±(20%+20Ω) | |
| 900~1200Ω | 30Ω | ±(25%+30Ω) | |
| Current | 0.00~9.95mA | 0.01mA | ±(2.5%+1mA) |
| 10.0~99.0mA | 0.1mA | ±(2.5%+5mA) | |
| 100~300mA | 1mA | ±(2.5%+10mA) | |
| 0.30~2.99mA | 0.01A | ±(2.5%+0.1A) | |
| 3.0~9.9mA | 0.1A | ±(2.5%+0.3A) | |
| 10.0~20.0mA | 0.1A | ±(2.5%+0.5A) | |
| Resistance resolution | 0.001Ω | ||
| Opening size | 32mm | ||
| Measurement time | 0.5s | ||
| Weight | 1180g | ||













