Designed for pipeline liquids, hydraulics, oil, water, gas, and vacuum negative pressure, universal pressure gauge offers high shock and vibration resistance. It supports multi-unit switching and one-key zeroing, providing a clear display and stable, low-power industrial measurement.
Specification
| Model |
YL-811 |
| Type |
Digital Pressure Gauge |
| Accuracy Class |
1.0% FS |
| Display |
4-digit LED display |
| Dimensions |
Nominal Diameter: 115 mm |
| Rated Current |
20 mA |
| Power Consumption |
≤ 0.5 W |
| Power Supply |
12 VDC, 24 VDC, 220 VAC, 380 VAC (Optional) |
| Functions |
Multi-unit switching, One-key zero calibration |
| Process Connection |
M20*1.5, G1/2, G1/4 (Threaded mount) |
| Ambient Temperature |
-20 to 80 °C |
| Available Options |
0–100 kPa 0–0.25/0.6/1/1.6/2.5/4/6/10/16/25/40/60 MPa
|
| Measurement Range |
Micro Pressure: 0–5...10...100 kPa Regular Pressure: 0–0.16...1...1.6...4 MPa High Pressure: 0–6...10...16...25...40...60 MPa
|
Features
- Clear Display:The LED digital pressure gauge features a 4-digit screen that provides clear, real-time data for effortless on-site reading.
- High Accuracy: As a high-precision universal pressure gauge, it delivers up to 1.0% FS accuracy with multi-unit switching (MPa, kgf/cm^2, PSI) for water, oil, and gas media.
- Anti-Interference Chip: Digital pressure gauge is equipped with a high-performance imported chip that suppresses electromagnetic interference for highly reliable data.
- Overpressure Protection: Universal pressure gauge features fast pressure response and tolerates momentary shocks up to 2x range to effectively prevent overpressure damage.
- User-Friendly & Shockproof: As an advanced digital pressure gauge, its built-in high-precision sensor ensures long-term stability with easy one-key zeroing and excellent anti-vibration performance.
- Durable Design: This digital hydraulic pressure gauge features a premium 304 stainless steel connection that withstands heavy vibration and harsh conditions for high safety and long service life.
Dimensions (Unit: mm)

Details

Applications
This LED digital pressure gauge is suitable for various working conditions, including hydraulic testing, water pressure testing, and gas-liquid mixtures. It is widely used in energy and water treatment systems, mechanical and electrical equipment, pneumatic and hydraulic systems, as well as industrial machinery like hydraulic presses, providing stable and reliable pressure monitoring support across diverse scenarios.

FAQ
Q1: What is the precision of this 4 digit LED digital pressure gauge? Is the error large?
A1: It has a 1.0% FS high-precision industrial rating, offering much smaller errors and better stability than traditional pointer gauges. This digital pressure gauge is ideal for hydraulic, pneumatic, and water supply systems.
Q2: What is the thread size of universal pressure gauge? Will it fit my pipe?
A2: The default standard size is M20×1.5. Other thread specifications can be customized to fit your pipeline; please confirm with customer service before ordering to ensure it fits your system perfectly.
Q3: How and when should I perform a zero calibration on this digital hydraulic pressure gauge?
A3: Briefly press the "ZERO" button. Note: You must do this only when there is zero pressure. Zeroing under pressure will cause permanent measurement errors.
Q4: What is the working temperature range of digital pressure gauge?
A4: The normal operating range is -20°C to 80°C. If the medium temperature exceeds 80°C, you must install a cooling/siphon pipe to protect the sensor of this digital pressure gauge from damage and errors.