220PSI 500PSI Air Conditioning Refrigerant Charge Pressure Gauge 97QDOOTDTYCechs:1. .2. Check the pressure for accurate refrigerant charge of the air conditioner.3. Special sealed design to prevent accidental venting of refrigerant.4. Two connectors for connection and air conditioner.5. The dial plate is convenient for watching the pressure. Specifications:Material: Plastic + Metal Color: Blue or Red Subject: 1/4" Pressure: 220psi (15kgf/cm2)/500psi (35kgf/cm2) Size(L*W): 12.5cm*8c m / 4.92n*3.15in Connect to the hydraulic switch therad is M10 male Connect to the nitrogen tank thread is G5/8" female Note:The item color displayed in the pictures may vary slightly when showing on the computer monitor since the monitors are not calibrated same. Please allow 1-3mm slight deviation due to manual measurement. Thank you!Package Included:1 x Pressure Gauge