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Legacy interlock device by Intoxalock Ignition Interlock

Legacy remains Intoxalock’s most popular ignition interlock (BAIID) device, with over 23,000 currently on the road. Customers like its low price, easy to use design, quick warm up time and zero false-positive accuracy.
Best price
Zero wait time*
Guaranteed accurate
BrAC level posted**
Single button activation
Legacy ignition interlock advantages
  • Most affordable ignition interlock device model
  • No wait time over 0° F
  • Fuel cell technology ensures highest accuracy in the industry
  • No false positives - alcohol specific testing
  • LED screen displays BrAC reading**
  • Easy to use – no humming, one button activation
  • Heat, cold and tamper resistant

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**BrAC levels do not post in Pennsylvania due to state laws

Meet state requirements
Arizona Missouri
Arkansas Montana
California New Hampshire
Connecticut New Jersey
Georgia Ohio
Idaho Oklahoma
Iowa Oregon
Kansas Pennsylvania
Kentucky Rhode Island
Louisiana Texas
Maine Utah
Massachusetts Wisconsin
Michigan Wyoming 
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