ANENG A3012 AC DC Voltage Electricity Tester Test Pen Socket Breakpoint Detector Features: 1. Non-contact induction NCV voltage detection: switch to "EF" gear, the probe tip of the test pen close to the AC voltage source at the same time the finger and the contact point of reliable contact, the closer the distance from the power supply the more urgent the alarm! 2. Flashlight illumination backlit high-definition display: lighting to assist the night measurement work, to eliminate the risk of electric shock, for you to illuminate the dark environment in front of you can also see the screen value clearly, backlight is also clear 3. AC voltage measurement: the tip of the pen is close to the AC voltage conductor, and at the same time, the finger and the contact point are in close contact with each other, and the corresponding AC voltage value is shown on the display. 4. DC voltage measurement: switch to DC voltage gear, hold down the negative terminal of 1.5V or 9V battery with one hand and the tip of the pen is in contact with the positive terminal of the battery, and one hand is in close contact with the contact point, and the corresponding voltage value will be shown on the display. 5. Wire conductivity detection: switch to P-C gear, one hand pinch the end of the uncharged wire, the probe tip and the other end of the wire contact, and at the same time, the hand and the contact point reliable contact. Specification: Product Model: A3012 Available specifications:US standard Alarm mode: sound and light alarm Product material: ABS/metal AC Voltage: 12-300V 50HZ-60Hz Accuracy: (4%+10) Socket rated voltage: Un=200V-250AC Power supply: 1*AAA battery (shipped without battery) Package Included: 1* Socket circuit analyzer 1* Instruction manual 1* Socket protective case Note: The above parameters are for reference only, all in kind shall prevail. Due to manual measurement, please allow 1-3mm error. Please make sure you don't mind before ordering. Please allow 1-3 grams weight error. Please make sure you don't mind before ordering. Due to different lighting of photos and differences in monitors, the pictures may not reflect the actual color of the object. Please make sure you don't mind before ordering, thanks!