PRECAUTIONS This product is engineered to give you years of satisfactory service df you handle it carefully, Here ate a few precautions: 1. Do not immerse the unit in water. 2. Do not clean the uni with abrasive or corrosive materials. They may scratch the plastic pats and corrode the electronic circuit, 3.Do pot subject the unit to excessive force, shock, dust, temperature or humidity, which may result in malfunction, shorter electronic life span, damaged battery and distorted parts. 4.