California ignition interlock device providers

Intoxalock|(888) 242-4339

convenient locations state-wide

Alcohol Detection Systems|(888) 205-5589

Halo Microsystems

Best Labs, Inc.

Blow & Drive Interlock

Alco Alert Interlock, Inc.

Instant Interlock

A&A Interlock Services

Skyfine USA LLC

1st month free IID

Simple Interlock


Monitech Ignition Interlock Services

Lifesafer Interlock, Inc.

Guardian Interlock Systems, Inc.

Smart Start

Get ignition interlock pricing in your state


By clicking the button below, you consent to one or more of the listed businesses calling and texting at the telephone number provided, without regard to the time of day, to encourage the purchase or lease of DUI-related products and services, including through the use of automated technology, artificial voice and/or pre-recorded means. Consent is not a condition of purchase. For California residents, click here.