Features: 1. Large LCD, easy-to-read 3.5-inch high-definition display. 2. Durable protective shell can prevent impact, friction and collision. 3. Non-contact AC voltage detection, top sensor probe design, more securely identify AC voltage. 4. The high-resolution large screen can display 3 test results on the screen, including voltage, frequency, and analog bars. parameter: 1. Dimensions: 143.4 x 70.9 x 15.7mm 2. Display: 9999 times 3. Screen: 3.5 inches 4. Resolution: 0.11ohms 5. S10 power supply: 1.5V (AAA) x 2 (not included) 6. S11 power supply: 800 mA lithium battery 7. Diode: automatically recognize the diode when it is lower than 3.0V 8. DC voltage: 0.8V-620V +/-(0.5%+3), resolution: 0.001V 9. AC voltage: 2.2V-620V +/-(0.5%+5), resolution: 0.001V 10. Resistance: 1-999.9ohms +/-(2.0%+5), 1kohms-60Mohms +/-(1.0%+3) 11. V-Alert (non-contact voltage detection): buzzer alarm soundon-site inspection: alarm buzzer, LCD screen display stripes 12. Continuity: If the resistance is less than 30ohms, the buzzer will sound 13. Frequency: - 1Hz-1000Hz +/-(1.0%+5) (ACV:2V-10V); resolution: 0.001Hz - 1KHz-60KHz +/-(1.0%+5) (ACV:10V-620V); resolution: 0.001Hz Packing list: S10: S10 Multimeter x 1 Test cable x 1 Manual x1 S11: S11 Multimeter x 1 Test cable x 1 Type-C charging cable x 1 EVA cloth bag x 1 Protective shell x 1 Manual x1 Note: The actual product is subject to the title model, the model machine of the picture is only for effect reference