1. Recovery, vacuum, charge, recycle & purity, 2. Fully automatically operation, 3. LCD display, 4. Operation & service promp 1. Recovery, vacuum, charge, recycle & purity,2. Fully automatically operation,3. LCD display,4. Operation & service prompt,5. Drain compressor oil automatically,6. High/Low pressure protection,7. Incondensable gas purge automatically.Input power------ 750WRecovery speed ...