led display digital voltmeter circuit

{"title":"Indoor Graphics Segment LED Display For Water Cleaner Voltmeter","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/5a\/13\/f06d79f4867faa04301482aa8c08-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"ROYAL DISPLAY","Model Number":"RY220215-CS02","Minimum Order Quantity":"1000pcs","Delivery Time":"15~25 working days","Certification":"ROHS, ISO","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union,","Supply Ability":"1000K pieces\/Month","Packaging Details":"Cartons, Capboard, EPE, Blister Tray","Digit Size:":"Customized","Display Function":"Graphics","Life Span":"100000hours","Emitting Color":"red\/amber\/yellow\/blue\/white\/green","Surface Color":"Black\/ Gray","Application":"Indoor application"}}

{"title":"AC 70-500V Digital Ammeter Voltmeter 0.56\" LED Digital Voltmeter","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/39\/d5\/398247bb4f7977be198d6b91ee8a-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"other","Model Number":"","Minimum Order Quantity":"10pcs","Delivery Time":"5-8 work days","Place of Origin":"Guangdong, China","Supply Ability":"100000 Piece\/Pieces per Day","Display Type":"Digital Only","Measuring Range":"DC 4.5V-30V","Accuracy Class":"high","Operating Temperature":"- 10 \u2103 ~ 65 \u2103","Dimensions":"48 x 29 x 22 mm(mm)","Port":"shenzhen port\/ guangzhou port"}}

{"title":"22mm 100A 50~500V round LED indicator voltmeter ammeter digital indicator signal lamp voltmeter ammeter lights tester","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/85\/42\/5a190c0acbce6a018800d1d3098e-200x200-1.jpg","attrs":{"Price":"$1.50 - $2.00\/pieces","Brand Name":"SUCHEN","Model Number":"AD101-22VAM","Place of Origin":"China","Display Type":"Digital Only","Phase":"Single Phase","Measuring Energy Range":"AC 0-100A AC 50-380V","Accuracy Class":"2% \u00b1 A V","Output Voltage":"AC 50-380V","Operating Temperature":"-25\u2103~55\u2103","Dimensions":"8.4X5.3X4.55 cm","Ampere Measuring range:":"AC 0-100A","Voltage measuring range:":"AC 50-380V","Frequency compatibi":"50-60 HZ","color:":"red green yellow blue white","Accuracy:":"2% \u00b1 A V","Display resolution:":"1V 1A","Sample rate:":"About 1time\/s","Input circuit power loss:":"nput circuit power loss: <2VA","No input signal hint":"display 00.0","Packaging Details":"1. Standard export carton ,suitable for long distance transportation.
2. Can customized package with customer's design,carton,box,and tape","Port":"Ningbo\/Shanghai Port, China","Supply Ability":"1000000 Piece\/Pieces per Month"}}

{"title":"Multimeter Electrical RCD Test Equipment\uff0cDigital ELCB Tester Ergonomic Design","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/4f\/f3\/d89f0b2f96781633291f1afc7a0e-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Fanke High-Voltage","Model Number":"UT 582+","Minimum Order Quantity":"One unit","Delivery Time":"10 work days","Certification":"ISO9001","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"10units\/month","Packaging Details":"Export standard wooden case with fumigation free","Usage":"Multimeter Electrical RCD Tester \uff0c Residual Current Device , Circuit Breaker Leakage Protection Tester","Phase switch":"Lamps indication","AUTO RAMP":"10mA\/20mA\/30mA\/100mA\/300mA\/500mA","Trip current accuracy":"\u00b110%","Trip time accuracy":"\u00b1(2%+2)","Data hold":"0\u00b0 and 180\u00b0","Display count":"1000","Meets IEC 61557":"61557-1:2007; 61557-6:2007"}}