1. Three-in-one function, electric pen + ammeter + multimeter, strong practicality.
2. Beautiful, portable, high precision, fast testing, more reliable.
3. Color LCD display, LED flashlight design, enhanced reading experience.
4. With full-range overload protection, automatic measurement at power on, and intelligent burn prevention.
5. Automatic mode: can automatically identify AC voltage, DC voltage, resistance, and on/off.

Parameters:
1. DC voltage: 0.800V-610V
2. AC voltage: 0.800V-610V
3. DC current: 1-100A
4. AC current: 1-100A
5. Resistance: 5 ohms-40.00 Mega ohms
6. Display: LCD screen
7. Maximum display value: 4000 digits
8. Sampling rate: about 3 times/second
9. Automatic shutdown time: 15 minutes
10. Working temperature and humidity: 0-40 degrees Celsius, 0-80%RH
11. Storage temperature and humidity: -10-60 degrees Celsius, 0-70%RH
12. Power supply: built-in 3.7V 400mAh lithium battery
13. Working altitude: maximum 2000m
14. Dimensions: 192 x 36 x 30mm
15. Weight: 100g