I recently used an interlock device from Guardian ...
I recently used an interlock device from Guardian Interlock of Kansas City and I am extremely satisfied with their product and service. The device was easy to install and the instructions provided were clear and concise. The customer support team was helpful and responsive whenever I had any questions or concerns. I appreciate the professionalism and efficiency of this company. If you are in need of an interlock device, I highly recommend Guardian Interlock of Kansas City.