how to use commercial electric multimeter

{"cid":"91198867","title":"VICTOR 205 Commercial Electric Multimeter stable DC 600V","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/03\/67\/7b7e187353bc8829d4d7ef42b009-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"VICTOR","Model Number":"VICTOR 205","Minimum Order Quantity":"100PCS","Delivery Time":"5-8DAYS","Certification":"CE","Place of Origin":"CHINA","Payment Terms":"Western Union, T\/T","Packaging Details":"CARTON","Power Supply":"1.5V\u00d72pcs","Weight":"approx. 156g\uff08including battery\uff09.","Max Display":"1999\uff083 1\/2digit\uff09auto polarity indication.","PRODUCT MODEL":"VICTOR 205","Displaying":"LCD displaying","SIZE":"150\u00d773.5\u00d735mm"}}

{"cid":"91199785","title":"Commercial Electric 600a Ac Digital Clamp Meter Pocket DC 600V 20M\u03a9 1000uF","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/47\/3b\/3f77a833154a17ccdf679c4489df-200x200-1.jpg","attrs":{"Price":"100pcs: USD10.2\/pc; 100pcs to 500pcs: USD9.8\/pc; 500pcs to 1000pcs: USD8.8\/pc; Above 3000pcs: USD8.3\/pc","Brand Name":"VICTOR","Model Number":"VICTOR 606A","Minimum Order Quantity":"300","Delivery Time":"5-30 days","Certification":"CE","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union, L\/C,Paypal","Supply Ability":"10000 pc available","Packaging Details":"Color box ,30pcs\/Carton ,13KG\/Carton","Color":"Black and orange","Weight":"Approx 250g","Packing":"Color box","Hold":"Data hold","Product Size":"198\u00d773\u00d737mm","Operation way":"Auto range","Clamp size":"30 mm","Battery":"1.5V*2"}}

{"cid":"91202321","title":"Original And New FLUKE 110 True RMS Digital Multimeter 600V FLUKE-110\/CN In Stock Weith Best Price","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/19\/da\/253f01e10f518a12cab9b137f0a7-200x200-1.jpg","attrs":{"Price":"USD105\/PC","Brand Name":"FLUKE","Model Number":"FLUKE-110\/CN","Minimum Order Quantity":"1","Delivery Time":"1WEEK","Certification":"-","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"100000","Packaging Details":"Carton","Measuring Voltage Range":"600v","Single package size":"10X10X10 cm","Single gross weight":"0.500 kg"}}