Main Functions: Testing water percentage and contaminate degree in lubricant within 3 minutes. Detecting whether have metal particles beyond 60 micro. Determining whether the newly purchased lubricant is qualified. Detecting the percentage of water content without standard sample oil. Main Features: Both AC and DC operational condition are Ok with the dry battery inbuilt. The protable metal mini case contributes to a convenient on-site inspection. Product advantage: The quick test realizes an "oil replace based on quality" Portable characteristic enables an "on site operation" The stability and high resolution guarantees an "accurate measurement" The large screen showing English words ensures an "easy to read/understand" -