Unlock a confident return to the road with Smart Start, your premier Ignition Interlock Device provider in Middlefield. We’re an approved Ohio IID supplier located in Western Middlefield at 15150 Kinsman Rd. Smart Start is your convenient and affordable choice for Ignition Interlock Device installation in Middlefield, with responsive customer service from expert, licensed technicians that will make your IID device experience smooth & low-stress. Smart Start is ready to schedule your Ignition Interlock Device installation in Middlefield. Call our Western Middlefield location & talk to a Program Advisor, who will help you schedule an appointment for your IID installation, calibration or removal.