
EM520 Handheld Digital Differential Pressure Meter
EM520 handheld digital differential pressure meter with high-precision sensor
Measures positive, negative, and differential pressure
Supports multi-unit conversion for flexible usage
Data logging function for recording measurements
Capable of airflow measurement for extended applications
Ideal for HVAC systems, industrial testing, and maintenance
Application
Widely used in gas pressure measurement, calibration, and troubleshooting across multiple industries:
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HVAC and ventilation systems
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Pipeline pressure testing
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Filter and air system monitoring
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Automotive diagnostics and maintenance
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Chemical and power industries
Description
The EM520 Digital Differential Pressure Meter is a professional-grade handheld device engineered for accurate micro-pressure and differential pressure measurement. Equipped with a high-sensitivity pressure sensor, it delivers fast response (0.5s) and reliable readings for both positive and negative pressure applications.
Designed for portability and efficiency, the device features a backlit LCD display, intuitive controls, and a durable TPU protective case. It supports data storage (up to 50 records) with max/min/average calculation, eliminating the need for manual recording.
With multi-unit switching, airflow measurement capability, and intelligent functions such as auto shut-off and overpressure alert, the EM520 is an essential tool for engineers, technicians, and maintenance professionals.
Features
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High precision measurement (±0.3% FS)
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Differential / positive / negative pressure measurement
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Fast response time (0.5 seconds)
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Data storage (up to 50 records with max/min/avg)
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Data hold & lock function
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One-key zero calibration
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Overpressure warning function
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Backlit LCD display for low-light environments
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Auto power-off for energy saving
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Multi-language interface (Chinese/English)
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Multi-unit switching (pressure + airflow units)
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Airflow measurement function (EM520 only)
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Portable handheld design with protective case
Technical Details
Product Type
EM510: Digital Differential Pressure Gauge EM520: Digital Micro Pressure Gauge
Housing Color
EM510: Cyan EM520: Blue
Measurement Range
EM510: ±200 kPa EM520: Multiple Pa-level ranges available
Accuracy
EM510: ±0.3% FS EM520: ±3% FS (Micro Pressure)
Resolution
EM510: 0.1 kPa EM520: 1 Pa
Air Velocity Measurement
EM510: Not supported EM520: Supported
Unit Selection EM510: 11 pressure units
EM520: 12 pressure units + 2 air velocity units
Air Density Setting
EM510: Not available EM520: Adjustable
Repeatability
±0.25% FS
Sampling Rate
≈ 0.5 seconds
Pressure Connection
1/8” (3.18 mm) quick connector
Operating Temperature
0 ~ 40°C
Storage Temperature
-10 ~ 60°C
Power Supply
9V battery
Net Weight
163 g






















