| Specifications | Range | UT243 |
| AC current (A) | 1000A | ±(2%+5) |
| AC voltage (V) | 600V | ±(1.2%+5) |
| Frequency (Hz) | 40Hz~80Hz | ±(0.5%+5) |
| Active power (W) | 0.01kW~600kW | ±(3%+5) |
| Apparent power (VA) | 0.01kVA~600kVA | ±(3%+5) |
| Reactive power (VAr) | 0.01kVAr~600kVAr | ±(4%+5) |
| Power factor | 0.3~1 | ±0.022 |
| Phase angle (°) | 0°~360° | ±2° |
| Active energy (Wh) | 1kWh~9999kWh | ±(3%+2) |
| Features | ||
| Display count | 10000 | |
| Auto range | √ | |
| Jaw opening | 50mm | |
| True RMS | AC voltage/AC current | √ |
| Auto power off | √ | |
| Low battery indication | √ | |
| Data hold | √ | |
| MAX/MIN | √ | |
| Data storage | 999 | |
| USB interface | √ | |
| LCD backlight | √ | |
| Full icon display | √ | |
| Harmonic analysis | 1~20 | |
| Setup | √ | |
| Single-phase 2-wire | √ | |
| 3-phase 3-wire | √ | |
| 3-phase 4-wire | √ | |
| Phase sequence test | Positive phase, reverse phase, phase deficiency | √ |
| Input impedance for DCV | ≥5MΩ | |
| Input protection | √ | |
| General Characteristics | ||
| Power | 1.5V battery (R6) x 4 | |
| Display | 46mm x 42mm | |
| Product color | Red and grey | |
| Product net weight | 601g | |
| Product size | 303mm x 112mm x 39mm | |
| Standard accessories | Batteries, test leads, alligator clips, USB interface cable, PC software CD | |
| Standard individual packing | Gift box, English manual, tool box | |
| Standard quantity per carton | 5pcs | |
| Standard carton measurement | 510mm x 375mm x 320mm | |
| Standard carton gross weight | 12.3kg | |