fast and accurate inventory management rfid on metal tag

{"cid":"91148595","title":"Durable RFID Crystal Epoxy Material Coated Jelly Tag For Management , reliable","imgUrl":"https:\/\/img.chinax.com\/nimg\/12\/ac\/e2cd44a6125b3c9b17c0dd303790-200x200-1.jpg","attrs":{"Price":"Depend on chip, material and printing","Brand Name":"ANG","Model Number":"AE-E112202","Minimum Order Quantity":"100 pieces","Delivery Time":"2~15 days","Certification":"CE,RoHs,SGS,ISO9001","Place of Origin":"Made in China","Payment Terms":"L\/C, T\/T, Western Union, MoneyGram","Supply Ability":"100,000 pieces per month","Packaging Details":"plastic bags with carton outer box","Material":"Epoxy+PVC","Size":"40.5*30mm","Feature":"Durable","Samples":"3pcs free for testing","Mode":"Passive","Type":"Contactless"}}

{"cid":"91176782","title":"7000 Id Memory RFID Stick Reader With 12 Hours Continuous Working Time","imgUrl":"https:\/\/img.chinax.com\/nimg\/15\/0f\/cfff53b2c02cb2884ed45c7204ca-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"FOFIA","Model Number":"PT280-G","Minimum Order Quantity":"1pcs","Delivery Time":"1-5 work days","Certification":"CE, RoHS","Place of Origin":"Wuxi,China","Payment Terms":"Western Union, , T\/T, L\/C,Paypal","Supply Ability":"200 pcs \/ Week","Packaging Details":"one reader in a barrel with manual book and USB cable","Color":"Yellow Black","Power Supply":"USB Powered","Product Category":"RFID Stick Reader","Frequency":"125 KHz","Warranty Period":"1 Year","Operating Temperature":"0\u00b0C To 50\u00b0C","Key Features":"RFID reader designed for reading animal ID tags, Powered by 4AA batteries for portability and convenience, Compatible with Android phones for easy data transfer and management, Can operate in temperatures ranging from -10 to 60 degrees Celsius, Operates at","Memory":"7000 Id"}}