Ohio Interlock located in Worthington, OH is an authorized Ignition Interlock installer. We are a state-approved interlock/car breathalyzer provider. Ohio Interlock state specialists provide 24/7 support and help guide you through the installation, calibration, and removal of your IID. Service center technicians will install your device and show you how it works. You'll return to your Ohio Interlock location regularly for calibration, so we've made it easy to find one near you. Call now to learn more.