Dual Sensitivity and Range: Voltage tester can detect voltages in two voltage ranges: 12V-1000V / 48V-1000V (adjusted by the "S" key). The probe's NVC sensor recognizes the voltage and displays it on the LCD screen. It meets many needs of residential, commercial and industrial environments. LCD Display and High Voltage Alert: During testing, the voltage intensity is displayed on the screen. The screen will light up in red or green. If the red light flashes, a fast time alarm indicates that the phase is detected. If the red light does not flash, it means that the neutral is detected. The screen turns red and displays a high voltage symbol when the voltage is higher than 90V. Non-contact Voltage Tester: The insulated housing of the voltage detector ensures safety. As the voltage signal strength changes, the bar graph on the screen increases or decreases, and the frequency of flashing and beeping becomes faster or slower with the signal strength. Auto Shutdown & LED Function: Auto shutoff allows you to save and control electricity; Equipped with a flashlight on the tip, allows you to use it in case of power outage or in dark environments; Pocket clip allows you to fix it easily. Our Services: 1 x KAIWEETS Voltage Detector; 2 x 1.5V AAA Battery; Note: This does not include other things, the color is based on the first picture, and the other pictures only show the effect. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!becomeveryrich