This product claims to be a time-saver but it`s frustratingly inconsistent. Automotive drivers like myself need reliable devices to help maintain our vehicle performance. Based on my observations, this product doesn't meet those expectations. The interface is difficult to navigate and the readings are inaccurate. The only redeeming quality is the packaging, which appears TO be sturdy .But that's not enough to outweigh the cons. Unfortunately, i cannot recommend this product..