Features: Suitable for 1.5v/3voltage batteries. This Button Cell Battery Tester is essential tool for accurately gauging the remaining power in your watch batteries, ensuring on times. Featuring advanced battery detection technology, the offers precise readings with a user friendly interfaces, a Small and Easy Carry designs. Suitable for anyone Stable on button cell power watches, particularly business professional, students, and travel who value punctuality. Whether at house, in office , or travel, provide quick battery Levels assessments without the need for specializes knowledge—simply place your watch within the tester. Constructed from ABS material, this battery tester is not just practical but also build to last, making it a addition to any watch owner's toolkit. Specifications: Material: ABS Size: 102x52x37mm Package Includes: 1xButton Cell Battery Tester note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.