... active RFID tag PET material, water-proof, heat resistant with battery 2.45GHz active RFID tagPET material, water-proof, heat resistantwith batterySpecificationsModel name ... -induced or timing transmit Identified distance3-80MMetarial PET,heat-proof,water-proofDimension 87*55*5.5mmWeight20gBettery Inside button lithium,can use ...