
The Elitech PG-30 Pro Red & Blue Digital Pressure Gauges, High and Low Pressure Gauges for HVAC 87+ Refrigerants with Backlight, is a digital pressure gauge that allows for real-time measurement of system pressure. The device is designed for use in piping systems, refrigeration systems, and other related applications.
| Specification | Value / Details |
|---|---|
| Pressure Measurement Range | Red gauge: -0.100 ~ 5.515 MPa (-14.5 ~ 800 psi) Blue gauge: -0.100 ~ 3.448 MPa (-14.5 ~ 500 psi) |
| Pressure Resolution | 0.001 MPa, 0.5 psi |
| Accuracy | ±0.5% FS |
| Sampling Rate | 1 reading per second |
| Pressure Units | MPa, bar, psi, kPa, kg/cm², cmHg |
| Temperature Units | ℃ / ℉ |
| Display | LCD with blue backlight (50 × 26 mm) |
| Backlight Duration | Auto-off after 3 / 4 / 5 / 10 / 15 seconds (no operation) |
| Auto Power Off | Configurable: 10 / 20 / 30 / 40 minutes or OFF (always on) |
| Parameter Settings | Auto power-off, pressure/temperature units, backlight duration |
| PT Chart | Built-in PT table for 87 common refrigerants |
| Power Supply | 3 × AAA batteries (included) |
| Battery Life | Approx. 1 year, with low battery indicator |
| Operating Environment | Temperature: -10℃ ~ 60℃ Humidity: 35% ~ 85% RH |
| Overpressure Alarm | Displays “ALARM” when: • Blue > 500 psi, Red > 800 psi • ALARM + flashing backlight when: Blue > 625 psi, Red > 1000 psi |
| Feature | Description |
|---|---|
| Stable & Reliable Sensor | Equipped with temperature-compensated pressure sensor for accurate measurements |
| Multiple Units Selection | Supports 6 pressure units: MPa, kPa, bar, psi, kg/cm², cmHg |
| LCD with Blue Backlight | Easy-to-read display even in low-light or nighttime conditions |
| Multi-Display Layout | Segmented display shows multiple measurement values simultaneously |
| Adjustable Backlight Time | 3, 4, 5, 10, 15 seconds or always ON |
| Auto Power-Off Options | Selectable: 10 (default), 20, 30, 40 minutes |
| Refrigerant Library & PT Table | Built-in database of 87 common refrigerants |
| Refrigerant Switching | Press SET or ZERO to scroll through refrigerants and related values |
| Zero Calibration Function | Use ZERO button to reset measurement offset to zero |
| MAX/MIN Reset | Hold ZERO to clear MAX/MIN values |
| Data Reset Function | Hold ZERO to clear current readings and restore if needed |
| Important Note | Do NOT perform zero calibration while measuring |
