Brand Name: KONNWEI Origin: CN(Origin) Certification: FCC Product Name: 12V Battery Tester Battery Tester language: English, French, Russian, Italian, Spanish....and more Battery Tester function: Quick Test/ In vehicle check cranking system, charging system Special Feature: Unique voltage graphing monitoring 12V Battery Tester range: CCA 100- 2000 CCA, 30- 220AH Advantages: Plug and play, accurate reading, colorful screen Update: Yes, easy life time free update by one-click Data storage and review: Yes, support review in tester or upload to computer for printing Car Diagnostic: Check vehicle battery system and alternator system Quality: A+ Quality, STM32 Chip set with High precision amplifier Software version: V1.2.3, update released on 20th-Feb, can update from v1.1.5 Newest software features: AGM battery optimization algorithm, more accurate