Interlock Devices

What Is An Interlock?

An Ignition Interlock Device (IID) is a mechanism, like a breathalyzer, installed in a vehicle to deter drinking and driving. Before the vehicle can be started, the driver must deliver a breath sample into the device, and if the analyzed result is greater than the pre-programmed level, the device prevents the vehicle from being started.

In most restricted driving programs, random retests are also required as the vehicle is being driven. When requested, the driver must deliver breath samples into the device and the device will log the event. If the result exceeds the pre-programmed level, the Ignition Interlock Device will not turn off the engine while the vehicle is in motion however it will give a signal to stop.

The data received from all breath samples are sent to the department(s) (Court/DMV/Probation, etc) who ordered the device to be installed. Some states require the data be sent immediately via wireless technology after the breath sample, while other states receive the information once per month.

The Sens-O-Lock FR9000

portable_breathThe Sens-O-Lock FR9000 mandatory ignition interlock unit was developed for drivers who have been convicted of an alcohol related or drunk driving (DUI, DWI, OUI) violation that results in a restricted license. Most states now have programs that allow these drivers to continue driving with an ignition interlock installed in their car.

This product conforms to state programs and enables drivers to regain their driving privileges under a zero tolerance program administered by the state in which the violation occurred. The mandatory unit allows drivers to complete their court imposed sentence while keepingĀ  their job and freedom to be with their families.

We are one of the only companies in the industry offering both a lease and purchase option, allowing you to keep the ignition interlock device beyond the terms of your court sentence. Purchasing the mandatory unit will help ensure that you and your family members never drive over the legal BrAC limit again.

Contact Us



    Westco Breathalyzer Locations


  • Amite
  • Baton Rouge
  • Covington
  • Houma
  • Independence
  • Lafayette
  • Lake Charles
  • Mandeville
  • Metairie
  • New Orleans
  • Prairieville