... 3.CE,FCC Certification 4.Safe and convenient 12V Battery Tester For Cars T806Functions:1.Battery Test2.Charging System Testing3.Start ... .Features:1.Quickly test the battery’s main specifications: Internal Resistance, CCA, Voltage, Electric quantity, Life-span.2.Various standards ... -18~50°CDimension: 221mmX99mmX31mmGuaranteed for one yearFunction Chart: 12V Battery Tester for cars(Printer inside) T806