MF-500-4-L model national patent multimeter is a high sensitive and versatile meter. The crust of meter is made of compression resistance material,with firm configuration&clear identifiers24& measure function character and so on. It can measure AC voltage &DC voltage&DC current& resistance . It also is suit for using in wireless field. It equip with safety&signal lamp&resistance&buzzer&circuit protect equipment which including diode.The meter has inner magnet and outer magnet kinds Measuring range DC voltage:DCV 0/2. 5/10/50 /250/500/2500V DC current:DCA 0/50UA/ 1/10/100 /500MA/ 5A AC voltage:ACV 0/10/50/250/500/2500V AC current:AC A 0/1/10 /100/500MA/ 5A Resistance: Ω R?R?0R?00R?KR?0KΩ