Test Screwdriver, Voltage Detector Pen Light Circuit Tester Electric Test Pen Screwdriver Contact Induction LED with Light 12V-220V 1pcs

【MULTIFUNCTION】The electroprobe with multifunction like self-checking, 12V-220V circuits and alternating circuits detection,direct current power detection,high voltage detection,and distinguish null line and find the broken point 【BLUE-RAY DIGITAL DISPLAY SCREEN】This circuit test pen with blue-ray digital display screen,easy to read even in the dark environment. for circuits detection and home appliance repairing 【SAFETY】For voltage testing, just need hold the tester pen and touch the direct test button, keep the screwdriver bit close to the cable, you can test the voltage easily and safety 【SPECIAL FUNCTION】1. Check household appliances (press the direct key). 2. Check the line (press the direct key). 3. Check the AC power (press the direct key). 4. Detect direct current (press the direct key). 5. Indirectly measure high voltage (do not press the direct key). 6. Identify the zero phase line and find the breakpoint (press the sensor key)