This is a car battery tester, which is made of and can be used for a long time. Suitable for a variety of 12V car batteries, including all car lead storage battery. This is a great battery tester that tests car batteries' healthy status. Features -Color: Red. -Material: ABS, copper, rubber, electronics. -Size: About 13.00X6.70X2.90cm/5.11X2.63X1.14in. - The compact size and light weight design are convenient to store and carry. - Reasonable design and provide us with a good experience. - Suit for automobile factory, garage, auto battery manufacturer, auto battery agent, etc. - Car charging system test can be carried out to let you know the car battery condition in time. - It can be used to test the car battery conveniently and bring great convenience to your work. Specification: Display: LCD screen. Application range: 12V battery. Voltage range: 7~15V. value range: 5~9995. Working temperature: -20 degree centigrade~60 degree centigrade. Storage temperature: -20 degree centigrade~60 degree centigrade. Package list: 1 x tester 1 x manual