• Guardian Interlock Systems connects a breath analyzer to a vehicle's electrical system. Once installed, the driver must pass a breath test before starting the vehicle to prove sobriety.

• Intoxalock a breath alcohol ignition interlock device (BAIID) that prevents an intoxicated person from driving.

• Sens-O-Lock Distribution of New England, Ltd. makers of ignition interlock devices for all types of vehicles.

• Smart Start provides vehicle ignition interlock services for DWI offenders that require breathalyzer alcohol testing prior to operating a vehicle.