A reader comprising: a first antenna ; a second antenna spaced apart from the first antenna ; an RFID reader circuit , wherein the first antenna is connected to the RFID reader circuit , wherein the first antenna is configured to receive a first signal from a RFID tag on a syringe , wherein the second antenna is connected to the RFID reader circuit , and wherein the second antenna is configured to receive a second signal from the RFID tag on the syringe ; and one or more processors programmed and/or configured to: control the RFID reader circuit to determine a first value of a signal parameter associated with the RFID tag based on the first signal; control the RFID reader circuit to determine a second value of the signal parameter associated with the RFID tag based on the second signal; receive, from the RFID reader circuit , the first value of the signal parameter associated with the RFID tag and the second value of the signal parameter associated with the RFID tag ; characterized in that the reader further comprises a connector configured to be connected to the syringe , wherein the connector is located between the first antenna and the second antenna , wherein the one or more processors are further programmed and/or configured to determine, based on the first value and the second value, whether the syringe including the RFID tag is connected to the connector . a first antenna ; a second antenna spaced apart from the first antenna ; an RFID reader circuit , wherein the first antenna is connected to the RFID reader circuit , wherein the first antenna is configured to receive a first signal from a RFID tag on a syringe , wherein the second antenna is connected to the RFID reader circuit , and wherein the second antenna is configured to receive a second signal from the RFID tag on the syringe ; and one or more processors programmed and/or configured to: control the RFID reader circuit to determine a first value of a signal parameter associated with the RFID tag based on the first signal; control the RFID reader circuit to determine a second value of the signal parameter associated with the RFID tag based on the second signal; receive, from the RFID reader circuit , the first value of the signal parameter associated with the RFID tag and the second value of the signal parameter associated with the RFID tag ; characterized in that the reader further comprises a connector configured to be connected to the syringe , wherein the connector is located between the first antenna and the second antenna , wherein the one or more processors are further programmed and/or configured to determine, based on the first value and the second value, whether the syringe including the RFID tag is connected to the connector . control the RFID reader circuit to determine a first value of a signal parameter associated with the RFID tag based on the first signal; control the RFID reader circuit to determine a second value of the signal parameter associated with the RFID tag based on the second signal; receive, from the RFID reader circuit , the first value of the signal parameter associated with the RFID tag and the second value of the signal parameter associated with the RFID tag ; characterized in that the reader further comprises a connector configured to be connected to the syringe , wherein the connector is located between the first antenna and the second antenna , wherein the one or more processors are further programmed and/or configured to determine, based on the first value and the second value, whether the syringe including the RFID tag is connected to the connector . <EOS>