We have the AlcoSensor IV with printer. The entire device and all attachments are portable… that means we can come to you for your alcohol testing needs, or you can come to our office. This is a fully compatible device with all DOT Guidelines for Screening and Confirmation tests (used for non-negative results). This instrument is both accurate and precise in all results. Atlas Edge Staffing has 2 Breath Alcohol Technicians and we are here to help, contact us for more details.