Product name:Battery tester Product model:BT189 Product material:ABS plastic Dimensions:92.2*61.4*13.5mm Product package:Blister package Testable type:N, D,C,AA,AAA.14500,10440,16340,CR2032,9V Measure Range:1.2~4.8V Accurately Test: C,AA,AAA,D,N,9V 6F22 batteries and 1.5V/3V button cell. Built of durable plastic and stainless steel. Usage: Fix a battery in the appopriate position and the tester willbegin.The two measuring points of 9V battery are on thebottom of the unit. The battery's reading value will beshown on the LCD. Specifications: 1. High Performance: Battery voltage tester accurate detection and easy use. 2. Small Size: Batteries power testing is made of ABS plastic shell, light, compact and portable. 3. Digital Display: LCD digital display, clear and convenient reading. 4. Wide Usage: Battery tester volt checker support multiple types of batteries, multiple use for one machine, and fast identification. Package Included: 1* universal battery tester