how much does it cost to install the smart start interlock device on cars in massachusetts
Choosing an Ignition Interlock Installer / Vendor. The pricing is standard, so it makes sense to pick a local installer convenient to you. To have the ignition interlock device installed in your car, it costs around $200 for the installation, and $85/month for the ongoing monitoring of the device.Some installers will come to your location for an additional charge.he pricing is standard, so it makes sense to pick a local installer convenient to you. To have the ignition interlock device installed in your car, it costs around $200 for the installation, and $85/month for the ongoing monitoring of the device.