Product Introduction
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The high accuracy digital pressure gauge (also known as a digital pressure indicator or electronic pressure gauge) is a battery-powered field instrument designed for real-time pressure monitoring and calibration in general industrial environments. It replaces the mechanical Bourdon tube movement of traditional analog gauges with a high-stability piezoresistive pressure sensor, a dedicated AD processing chip, and an industrial-grade MCU-delivering digital precision, temperature-compensated accuracy, and immunity to the parallax and wear issues inherent in mechanical designs.
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The gauge features a 5-digit large LCD that displays pressure with high resolution, alongside ambient temperature and a dynamic percentage-of-full-scale indicator. The micro-power circuit design, powered by two standard AA batteries, enables portable operation for extended periods without external power or signal wiring-making it ideal for field checks, temporary measurement points, and locations where installing a wired transmitter is impractical.
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Available in accuracy grades from ±0.05% FS to ±1% FS and pressure ranges up to 0-100 MPa gauge, the gauge adapts to a broad spectrum of monitoring and calibration tasks. Optional data logging supports autonomous recording for trend analysis, while optional Bluetooth enables wireless data retrieval and remote monitoring. The 304 stainless steel case and G1/4 male pressure connection provide durability in industrial environments, and the IP54 protection rating ensures resistance to dust and water splashes.
Product Advantages
±0.05% FS High Accuracy
Available in accuracy grades of ±0.05%, ±0.1%, ±0.2%, ±0.5%, and ±1% FS. The 0.05% grade delivers laboratory-grade precision for calibration and critical measurement applications.
Peak Hold & Percentage Display
Captures and holds maximum pressure readings for transient event analysis. Dynamic percentage-of-full-scale display provides instant visual reference of where the measurement falls within the range.
Optional Data Logging & Bluetooth
Optional data logging enables autonomous pressure recording for trend analysis. Optional Bluetooth connectivity supports wireless data transfer and remote monitoring from smartphones or tablets.
8 Pressure Units Switchable
Toggle between psi, bar, mbar, kPa, MPa, mH₂O, inchH₂O, and kg/cm². One gauge serves multiple regional standards and application preferences without conversion.
Specifications
| Product Type | High accuracy digital pressure gauge / digital pressure indicator |
|---|---|
| Pressure Range | 0 ~ 100 MPa (custom ranges available) |
| Pressure Type | Gauge |
| Overload Pressure | 1.5× full-scale pressure |
| Accuracy Grades | ±0.05% FS; ±0.1% FS; ±0.2% FS; ±0.5% FS; ±1% FS (model-dependent) |
| Long-Term Stability | ±0.1% FS per year |
| Display | 5-digit large LCD with ambient temperature display and percentage-of-FS indicator |
| Pressure Units | psi, bar, mbar, kPa, MPa, mH₂O, inchH₂O, kg/cm² (8 units, switchable) |
| Functions | Peak hold; ambient temperature display; percentage dynamic display; zero/tare |
| Optional Functions | Data logging; Bluetooth |
| Power Supply | 3V DC (2 × AA batteries) |
| Operating Temperature | 0°C ~ +40°C |
| Compensated Temperature | 0°C ~ +50°C |
| Storage Temperature | -20°C ~ +60°C |
| Media Compatibility | Gases and liquids compatible with 316L stainless steel |
| Sensor Material | 316L stainless steel |
| Case Material | 304 stainless steel |
| Pressure Connection Material | 304 stainless steel |
| Seal Material | FKM (fluororubber) / NBR (nitrile rubber) |
| Pressure Connection | G1/4 male thread |
| Ingress Protection | IP54 |
Application
The high accuracy digital pressure gauge is engineered for applications where precision, portability, and independence from external power converge. Its battery-powered operation and compact stainless steel housing make it ideal for on-site pipeline pressure checks, mechanical/electronic test benches, portable calibration kits, and field service diagnostics-anywhere a wired transmitter or benchtop instrument is impractical. Optional data logging and Bluetooth extend its utility to unattended monitoring and wireless data collection scenarios.
Indoor pipeline pressure monitoring
Mechanical & electronic equipment testing
Portable pressure measurement
Calibration & verification
Fluid pressure testing
HVAC & plumbing diagnostics
External structure
Unit: mm
Q: What is a digital pressure gauge and how does it differ from a traditional analog gauge?
A: A digital pressure gauge uses an electronic pressure sensor and a digital display instead of a mechanical Bourdon tube and pointer. This eliminates parallax error, mechanical wear, and the limited resolution of analog scales. Digital gauges also offer functions that analog gauges cannot provide-peak hold, unit switching, ambient temperature display, data logging, and Bluetooth connectivity-while maintaining or exceeding the accuracy of precision analog test gauges.
Q: How long do the batteries last and what type are they?
A: The gauge operates on two standard AA batteries (3V DC supply). The micro-power circuit design extends battery life for extended field use, though actual duration depends on usage patterns, backlight usage, and whether optional data logging or Bluetooth functions are active. AA batteries are universally available, ensuring easy replacement in the field.
Q: What is the peak hold function used for?
A: Peak hold captures and displays the maximum pressure reached during a measurement session. This is particularly useful for detecting transient pressure spikes (water hammer, pump startup, rapid valve closure) that a static display would miss, and for verifying that system pressure has not exceeded a threshold during an operation cycle.
Q: What is the difference between the data logging and Bluetooth options?
A: Data logging enables the gauge to autonomously record pressure readings at set intervals for later download and analysis-useful for unattended monitoring and trend documentation. Bluetooth provides wireless connectivity for real-time data transfer and remote monitoring from a smartphone or tablet. The two functions can be specified independently or together, depending on your data collection workflow.
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