Do not be surprised to see a difference of prices in the thousands of dollars for only one number difference in the grading scale say for example 65 to 66. This is very common and the grading is extremely precise. As a new coin investor, do not get caught up in these particulars and ...
Detection zones:6 zones;Sensitivity:100 levels;The minimum object:1 yuan coin;IP Grade:IP55;Power supply:220V, 50/60HZ, American/Euro/Chinese type plug;Certifications:ISO 9001; CE;Application:airport, subway, train station;Certification:CE;Customized sup