Puuli Handheld DIY Digital LCD Display Multi-meter Multimeter Multi Avometer Multitesters Kit Electronic Learning DIY Kit This kit is more suitable for learning and we don't supply any manual but only has the schematic, pl Max display: LCD 3 1/2 digits (1999 count) 0.5 high Product Size: 126*70*26mm Measure method: double integral A/D switch implement Power: 9V NEDA 1604 or 6F22