BACtrack C8 Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration

- Powered by BACtrack's patented BluFire® Fuel Cell Sensor, the C8 utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement. - BACtrack's innovative ZeroLine® technology estimates the time until your BAC is 0.00%, allowing you to quickly and easily know where you stand. - Remember, the only safe time to drive is when your BACtrack shows 0.00%. Anything above that? You can call an Uber directly from the App. - Use the BACtrack C8 with or without your smartphone. "Standalone Mode" delivers your BAC results directly to your C8. "App Mode" wirelessly delivers your BAC results to the BACtrack App on your smartphone. Easily switch between modes. - If your BACtrack C8 ceases to function properly during the first year of operation, we will repair or replace the defective product at no charge ***when purchased from an authorized retailer***