Criminals and cheats suggest anywhere else. They give you faulty equipment, they aid in working DMV to lie and cheat you and overall they will pretend to be helping with a hand in your pocket! Lost my job and cost me bunch extra due to their poor equipment and being manipulated by state

Thier device sucks, contanly giving false positives. Having no alcohol or food I have failed a test, turned engine off, turned ignition on retested and passed within 1 minute three different times. This all cost extra $35 for reporting fee plus the extra recalibration fee The company takes no responsibility for thier device, the device is never wrong according to customer service, which also sucks.