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.