Key Feature:

• Free App (iOS and Android): Settable high/low-pressure alarm, you can receive remote notifications when readings move beyond a pre-set value. The data can be saved and exported in Excel and PDF format.
• Offline Record: The wireless pressure digital gauge can record data offline and transmit the current pressure value to the app by Bluetooth automatically which helps you search data at any time and place.
• Multiple Refrigerants: Support the saturated temperature-pressure comparison table more of 87 kinds of refrigerants.
• 7 Units Available: psi, kg/m, cmHg, inHg, bar, Kpa, Mpa
• Automatic Calculation: Super-heat and sub-cool can be calculated automatically to reduce the error by manual calculation, and get this parameter directly.
• Waterproof: The pressure gauge is made by ABS and PPT and the waterproof level is IP65.
• Service 1-year warranty. 30 days free & easy return 

APP Functions:

• Real-time display of current pressure value;
• Auto calculation of the degree of super-heat and sub-cool;
• Various types of refrigerants are available;
• Settable high/low-pressure alarm;
• Parameters:
• Pressure measuring range: -14.5-500psi
• Resolution: 0.5psi
• Accuracy: ±0.5% FS
• Measurement units: psi,kg/cm2, cmHg, inHg, bar, kPa, MPa
• Offline Records: 9000 readings
• Battery life: 160 hours
• Maximum overload pressure: 750psi
• Operating temperature: 0°F-140°F(-17.8°C-60°C)
• Fitting: 1/8" Male NPT
• Dimension: 5.00"*2.87"*1.46"(127mm*73mm*37mm)

What's in the box:

• 1 X PGW500
• 3 X AA Alkaline Battery
• 1 x User Manual
• 1 x 1/4’’ Male Adapter
• 1 x 1/4’’ Female Adapter
• 1 x Bent Adapter

Warning:

• Please use the gauge in a specified environment to avoid error or damage of the sensor;
• Please do not use chemical solvent or corrosive to clean the gauge;
• Please do not disassemble the gauge;
• Remove the batteries if the gauge is not in used for a long time to avoid batteries leakage corrodes the gauge. The batteries included are not rechargeable. Please do not charge them.

Operation Introduction:

1. Before the gauge accesses the system, press the power button   to power on. The gauge displays P500. Then it will conduct self-test until pressure value is displayed.
2. After the gauge is turned on, press and hold  to make the screen display O.
3. Note: It is possible to zero when the pressure value is below 10psi.
4. Make sure interface type matches with the access system. If not, please use the included adapter.
5. Press and release  to turn on the backlight. The backlight will be auto off after two minutes idle. Press  to turn off backlight directly.
6. Press and hold  to switch measurement units.
7. Press and release  to enable a wireless connection. Press it again to disable the wireless connection.
8. Press and hold  until REC" appears in the screen to enable record function. Press and hold  again to disable this function.

140 Refrigerant Profiles:

• R11,R12,R13,R14,R21,R22,R23,R32,R40,R41,
• R50,R113,R114,R115,R116,R123,R124,R125,R134a,
• R141B,R142B,R143A,R152A,R161,R170,R218,R227EA,
• R236EA,R236FA,R245FA,R290,R401A,R401B,R401C,R402A,
• R402B,R403A,R403B,R404A,R406A,R407A,R407B,R407C,R407D,
• R407E,R407F,R408A,R409A,R409B,R410A,R410B,R412A,R413A,R414A,
• R414B,R415B,R416A,R417A,R417B,R417C,R419A,R419B,R420A,R421A,
• R421B,R422A,R422B,R422C,R422D,R422E,R423A,R424A,R425A,R426A,R427A,
• R428A,R429A,R430A,R431A,R432A,R433A,R433B,R433C,R434A,R435A,R436A,
• R436B,R437A,R438A,R439A,R440A,R441A,R442A,R443A,R444A,R444B,R445A,
• R446A,R447A,R448A,R449A,R449B,R450A,R451A,R451B,R452A,R452B,R452C,
• R453A,R454A,R454B,R454C,R455A,R456A,R457A,R458A,R500,R502,R503,R504,
• R507A,R508A,R508B,R509A,R510A,R512A,R600,R600a,R601,R601a,R717,R718,
• R720,R728,R732,R740,R744,R1233ZD,R1234YF,R1234ZE

Comparison Chart: