✅Urwise -The 2022 Latest Dual-Range NonContact Voltage Tester With LED Display A helpful voltage detector pen that can protect you. ✅Adjustable Sensitivity ✅Identification of Live/Null Wire ✅Low-battery Indicator ✅Portable Pencil Hook ✅White LED Flashlight - Energy Saving, Convenient ✅High and Low Voltage Signal Indicator ✅Buzzer Alarm - Loud and Sensitive ✅5 Minutes Automatic Shutdown ✅Good Sensitivity of NCV Sensor ✅Acousto-optic Discrimination of Live or Null Wire ✅Easy to replace the battery⚫This Circuit Tester Tool is specially designed for the home safety test voltage. Therefore, it can only measure the AC current, not the DC current.⚫Avoid that customers can not detect the leakage of electrical appliances,Voltage Detector Pen will also react to static electricity, ensuring the safety of customers.⚫If there is any problem with your voltage tester received,you can return/replace this product purchased here within 24 months without giving any reason.⚫Please do not hesitate to ask for help from our after-sales service, we are always here for you.Technical ParametersAC Test Range: About 12V~1000V (S Key indicator light)About 48V~1000V (S Key indicator light out)Frequency: 50Hz/60HzWarning Method: Sound and light alarmLight function: YesAutomatic shutdown: Yes (5 Minutes)Low pressure Tip: YesZero Line FireWire identification: According to the strength of the signal, the signal is strongNCV Sensitivity: Automatic selection (High Medium Low)NCV Sensitivity method: High (H M L Red) Medium (M L Red) Low (L Red)by alarm sounds of different frequencies and LEDs of different colors.Security phase: CE CAT III 1000V/CAT IV 600V Power supply: 4x1.5V BatterySize: 158x22x22mm Product Net Weight: Around 46g x2