| Specifications | | Range | UT501A |
| Insulation resistance (Ω) | Test voltages | 100V/250V/500V/1000V | 0%~10% |
| 100V | 0MΩ~100MΩ | ±(3%+5) |
| 250V | 0MΩ~99.9MΩ | ±(3%+5) |
| 100MΩ~5GΩ | ±(5%+5) |
| 500V | 0MΩ~99.9MΩ | ±(3%+5) |
| 100MΩ~5GΩ | ±(5%+5) |
| 1000V | 0MΩ~99.9MΩ | ±(3%+5) |
| 100MΩ~5GΩ | ±(5%+5) |
| Load current | 50V (R=50kΩ) 1mA | 0%~10% |
| 100V (R=100kΩ) 1mA | 0%~10% |
| 250V (R=250kΩ) 1mA | 0%~10% |
| 500V (R=500kΩ) 1mA | 0%~10% |
| 1000V (R=1MΩ) 1mA | 0%~10% |
| Short-circuit current | | <2mA |
| AC voltage (V) | 30V~750V | ±(2%+3) |
| Features |
| Display count | | 2000 |
| Auto range/Low battery indication | | √ |
| LCD backlight/Light alarm | | √ |
| Buzzer alarm/High voltage indication | | √ |
| Over load indication/Auto discharge | | √ |
| Test voltage secondary display | | √ |
| 10MΩ internal resistance test | | √ |
| General Characterisitics |
| Power | 1.5V battery (LR6) x 6 |
| Display | 70.6mm x 34mm |
| Product color | Red and grey |
| Product net weight | 500g |
| Product size | 150mm x 100mm x 71mm |
| Standard accessories | Batteries, test leads, alligator clips, gallus |
| Standard individual packing | Gift box, carrying bag, English manual |
| Standard quantity per carton | 20pcs |
| Standard carton measurement | 500mm x 380mm x 330mm (0.063 CBM per standard carton) |
| Standard carton gross weight | 17.7kg |