A system is disclosed for tracking and monitoring sets of assets in or on a container using RFID-RF tags associated with the assets. The system comprises a specimen holder bin or similar container and a wireless tag affixed to the specimen holder bin. The specimen bin holder is configured to hold a plurality of assets. The wireless tag comprises a radio frequency identifier (RFID) circuit, a radio frequency (RF) circuit, a processor, a memory storing an identifier (ID) associated with the RFID circuit, and an energy source electrically connected to the RFID circuit, the RF circuit, and the processor. The wireless tag is configured to broadcast the identifier associated with the RFID circuit responsive to an interrogation signal by one or more gateways associated with the system. In some embodiments, each asset of the plurality of assets additionally comprises an RFID tag.