... AAA, AA, C, D, 9V and button batteries, whether general-purpose, alkaline or rechargeable. Portable battery, bulb & fuse tester is handy ... too. Dual scale allows testing and measuring battery voltage or capacity. Requires one 9V battery (not included).Test fuseTests auto and household ... red area. the measured component is in open circuit.Power:9V battery (6F22)Dimensions(W×L×T):66×150×32 mmWeight:160g ...