The APC-90 Breathalyzer is a breathalyzer with a premium electrochemical sensor of the highest quality and ensuring reliable and accurate results. The best technology on the market used by police force. The APC-90 has been recognized as the most reliable device in a Swedish magazine destined for good buys. It has among other things, tests counter, a low battery indicator, automatic alarm when the measurement is above 0.05% and a lighter socket in case your battery is flat. Excellent value.