... -tag read,proof-water, can be used widely in RFID systems,the mainly applying site is: Logistics and ... with true-false of productsOther fields:Used widely in club management,library,student’school,consumption management,time ... -readingReading Rangeup to 12meterReading ClueBuzzerAntennaBuilt-in line polarization Antenna,Gain:12dbiPower SupplyDC+9V (Power Adapter),DC+12Dimension440mm×440mm×50mmWeightN.W ...