1. TWO Connections: Flare or solder conncetion 2. Connection Size from 1/ 4'' to 1 1/ 8''. 3. Max. Working pressure: 3. 5MPa. 4. Refrigerant: HFC AND HCFC(R22. R134A, R404A, R407C, R507) AND CFC HCFC, R22. 5. Indicates too high water contents in the refrigeration system 6. Indication of lack of sub- Cooling 7. Indication of refrigerant deficiency. 8. For CFC HCFC AND HFC refrigerants. 9. Ambient working Temperature: - 50 to 80 10. Max. Working pressure: 3. 5MPa