Features: Achieve precise and reliable measurements with the Multifunctional Digital Tester. Crafted with high quality materials for durability and practicality, this versatile tester is a must have tool. Designed for electronic enthusiasts, engineers, and students, the tester provides user friendly operation and accurate results. Whether in a workshop, laboratory, or classroom, this tester is perfect for analyzing and testing various electronic devices. Unlock the potential of your electronic projects and research with the Multifunctional Digital Tester, offering convenience and reliable functionality. Specifications: Material: Electronic Component Battery: Built in Lithium Battery. AAA Batteries NOT Included. Size: Approx. 80x60x20mm/3.15x2.36x0.79in(Mainboard) Package Includes: 1 Set Transistor Tester note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.