The product titled ‘ANNUAL CALIBRATION & PREVENTATIVE MAINTENANCE – DR1000’ is a service package designed to ensure the optimal performance and longevity of your equipment. This service includes both an annual calibration and preventative maintenance. The calibration ensures that your equipment is performing accurately and consistently, in accordance with manufacturer’s specifications. The preventative maintenance aspect of the service involves a thorough inspection and servicing of the equipment to prevent potential issues before they arise. This service is sold individually (each).