Smart Start Interlocks, at 10 Griffin Road in Maungaturoto, Kaipara, is a New Zealand based business that installs alcohol ignition interlocks, which are devices fitted to a car that check the driver's breath before the engine starts. The website says it also sells personal breathalysers, which drivers can use to check their alcohol level before they drive. Interlocks can be applied for online, or by calling 0800 002 182 for faster handling of a query.
Customers mention the staff most often, and say they are helpful, informative and supportive. One said the team took time to explain the process, the rates and where the devices can be installed, and answered every question. Another said the process was straightforward and easy to work with, and got everything done in a short time. One customer said it was not an ideal situation, but that the team kept them well informed at each stage. As at 2026, the AF-35C personal breathalyser is listed at $199.00, and the Lifeloc FC10 at $1,265.00.