ANENG | ANENG B21 Rechargeable Voltage Detector Pen with LED Flashlight Auto Shutdown and Replaceable Tip for Electrical Maintenance

ANENG B21 Rechargeable Voltage Detector Pen with LED Flashlight Auto Shutdown and Replaceable Tip for Electrical Maintenance  1.Product OverviewThe ANENG B21 is a professional-grade voltage tester pen designed for electricians, maintenance technicians, and home DIY enthusiasts. Combining non-contact and contact measurement modes, it delivers safe, accurate AC voltage detection, zero/live wire identification, and circuit breakpoint troubleshooting—all in a compact, ergonomic design. Built with high safety standards and user-friendly features, it’s your reliable partner for all electrical inspection needs.2.Core Parameters Of The ProductBrand: ANENGModel: B21Induced voltage range: non-contact 30V~1000V; Contact type 3V~600VApplicable frequency: 50Hz/60Hz AC power frequencyAlarm method: screen backlight color change+buzzer alarmCore functions: Zero live wire recognition, line breakpoint search, three-level electric field strength display (weak/medium/strong), LED flashlight illumination, replaceable screwdriver functionPower specification: Built in 3.7V 300mAh 14500 lithium battery (can be directly charged)Safety level: CE CAT.II 1000V/CAT IV 600VAdditional features: dual color screen backlight display, low battery reminder, automatic shutdown after 5 minutes of idle, insulated rubber handleNet weight of the whole machine: 109gB21 Tester PenProduct nameDigital tester penAC voltage rangeNon contact measurement: 30~1000V;Contact measurement: 3V~600VFrequency50~60HzAlarm methodScreen backlight color change+beep alarmBreakpoint lookupThose with high electric field strength or high voltage values arethe live wiresSensitivity indicationof inductionThree grid scale indication:"-" Weak electric field'--" Medium electric field"--"Strong electric fieldFlashlightWhite LED lightAuto ShutdownAutomatic shutdown after 5 minutes of no operationSecurity levelCE CAT.II 100OV/CATIV 600VNCV voltage detection√On-off detection√Low battery alert√Dual color digital display√Backlit screen√Breakpoint detection√Replaceable batch head√Insulated rubber handle√Lithium direct charging14500 300mAh 3.7Vbattery3.Application:It can be used in electronic factories, electrical appliances, automobile maintenance, households, etc., and has a wide range of uses.4. Packaging:1* B21 screwdriver test pen1 x USB Charging Cable（Be Shipped Randomly）1 x InstructionManual1Storage bag1 Packaging box10* batch heads