The Label Writer 550 printer works with our Alco-Sensor IV @ Work software. The data is printed on small labels with self-stick backing that the Breath Alcohol Technician places in the appropriate space on the Alcohol Testing Form. Please note: the self-stick labels are not tamper-evident. Users should secure at least one edge of each label with evidence tape. Printer comes with an installation CD, power cord and USB cable. NOTE: This printer is on back order until late June, 2022.