Scientific Laboratory Equipments

1. Benchtop pH meter Make Hanna Instruments Ph and temperature measurement data management system. Does it work with Qualigens buffer solution or do we need to purchase Hanna buffer solutions mandatorily? Please confirm 2. Lab Refrigerator Make Remi or Thermofisher Smallest Capacity at 4 degree Celsius 3. Lab Freezer Make Remi or Thermofisher Above 300L at -20 degree Celsius 4. Vortex Mixer Make Spinx - With multiple 15 mL and 2 mL ports