Engine Oil Analyzer OTO350 Motor Oil Tester - Instantly Know If Your Oil Needs Changing!

• An ideal gift. Completly unique, new, and it works! 
• The OTM350 can pay for itself in just one saved oil change.
• Can detect serious engine problems before expensive repairs are needed.
• Works on synthetic or standard motor oils. Works with all diesel or gas engines.
• Reusable. Build-in Rechargeable lithium battery 1000mah inside.