1. NCV detection: in NCV mode, the instruments NCV sensing probe gradually close to the area under test 2. In-line detection: when you select the in-line mode, connect the red probe to the test point or insert 3. Resistance measurement: you can measure the impedance of various resistive components and cables 4. Continuity test: for resistance measurements of less than 50 ohms, the instrument will produce an audible beep and the backlight will turn green 5. AUTO range: when the instrument is set to AUTO mode, it automatically recognizes voltage, resistance and continuity measurement signals 6. LOW battery indication: when the battery voltage is lower than the normal working level, the upper right corner of the screen will display a logo, prompting the user to replace the battery 7. LED flashlight: convenient for close inspection and measurement 8. Auto power off: the instrument will automatically shut down within 15 minutes of non-operation to save battery power 9. High resolution LCD display: provides clear and accurate measurement data and function symbols 10. Probe storage slot design on the back, easy to carry and operate 11. All-in-one design, no need for separate probes, to avoid interference 12. Power supply: 2 x 1.5V AAA batteries (not included in delivery) 13. Size: 136.2 x 44.5 x 32mm 14. Weight: about 66.9g