USB Type C Tester Digital Voltmeter Ammeter Charging Monitor PD Adapter 3 in 1

Accuracy and Reliability: The Stud Finder adopted the most advanced detection technology which is suitable for wood, beams, solids, metal and AC wires behind the floor, ceiling and walls. Stud Finder is durable and practical for use in homes, offices and workshops. An ideal choice for professionals and DIY enthusiasts. LCD Display & Buzzer: Large LCD screen can display detection mode, depth, signal strength and battery indicator. When the object is found, the signal strength and beep intensity tell you if you are closer to the target center. Automatic calibration and automatic shutdown: When calibration is needed, just lift the instrument in the air, then press the metal detection button, then it will be automatically calibrated. And it will automatically shut down without any operation for about 5 minutes.