One click multifunctional: The voltage tester switches between high sensitivity and low sensitivity through the "S" button. When the indicator light "S" is turned on, it enters a high sensitivity testing state. Long press "S" to enter flashlight mode, convenient for use at night. LED digital display: The electrical tester pen display screen displays the values and icons on the screen, making it easy to read information. When the probe approaches an electrical appliance or wire, it will emit corresponding buzzers and indicators to better assist us in circuit fault detection. Non contact detection, more reliable: The insulation design of the NCV induction probe on the electrical tester makes it for us to conduct circuit checks. At the same time, there are multiple protection standards with two cat levels to during the testing process. The multi in one design can achieve greater portability: saving functions, pen holder and LED digital display design, easy to detect 12 to 1000 V AC voltage and 48 to 1000 V AC voltage, intelligent identification to find breakpoints. Application: The voltage tester can automatically distinguish between neutral wires and wires, detect wire conduction, household electrical equipment, , and other magnetic fields. Material: plastic colour: Black Package Contents: 1 x Voltage Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.