1. Equipped with a complete protection circuit, all gear ranges have overload protection capabilities, achieving intelligent anti-burnout, effectively preventing the multimeter from being burned out due to improper operation
2. Anti-slip and anti-drop protective cover, effectively protecting the multimeter
3. 1999 three-and-a-half digit high-precision LCD display, facilitating reading
4. The screen itself has a battery level indicator. When the built-in 9V battery voltage is insufficient, the screen battery icon lights up to prompt timely battery replacement to avoid measurement errors caused by insufficient battery power
5. Display specification: 3 1/2-digit automatic polarity LCD display, the first digit of the over-range position shows 1/-1
6. Measurement method: Dual-integration A/D conversion, sampling approximately 3 times per second
7. Working environment: Temperature 0-40℃, relative humidity less than 80%
8. Calibration environment: Temperature 23±5℃, humidity less than 75%, factory calibration validity period 1 year
9. Power supply: 9V battery (shipping does not include the battery)
10. Measurement range and accuracy:
- DC voltage: 20mV/2V/200V/1000V, accuracy ±(0.5%+3)-±(0.8%+10)
- AC voltage: 2V/20V/200V/750V, accuracy ±(0.8%+5)-±(1.2%+10)
- DC current: 2mA/20mA/200mA/10A, accuracy ±(0.8%+10)-±(1.2%+8)
- AC current: 2mA/20mA/200mA/10A, accuracy ±(1.0%+15)-±(2.0%+5)
11. Size: about 17.8 x 8.8 x 3.5 cm