
EM2000H Digital Micro Differential Pressure Gauge Controller
High-precision digital micro differential pressure controller
LCD real-time display with digital filtering technology
Standard 4–20mA output with optional RS485 communication
24V DC powered industrial pressure monitoring device
Multiple pressure unit switching supported
Suitable for HVAC, cleanroom, and negative pressure systems

Application
Cleanroom differential pressure monitoring
HVAC ventilation systems
Operating room pressure monitoring
Medical ambulance negative pressure systems
Air duct differential pressure measurement
Industrial ventilation systems
Negative pressure breeding systems
Industrial automation pressure monitoring
Description
The EM2000H Digital Micro Differential Pressure Gauge Controller is a high-precision digital pressure monitoring device designed for cleanroom pressure control, HVAC systems, medical negative pressure environments, industrial ventilation, and air differential pressure monitoring applications.
The product integrates differential pressure measurement, pressure switch control, transmitter output, and RS485 communication into one device. Equipped with a high-definition LCD display and digital filtering technology, it provides accurate real-time pressure readings with strong stability and anti-interference performance.
Powered by an external 24V DC supply, the EM2000H supports standard 4–20mA output and optional RS485 communication for industrial automation and remote monitoring systems. The durable aluminum housing and transparent high-strength PC cover ensure long service life and clear visibility.
It is widely used in cleanrooms, operating rooms, ventilation ducts, medical ambulances, negative pressure systems, and HVAC pressure monitoring applications.
Features
- High-precision digital differential pressure measurement with stable LCD display
- Standard 4–20mA analog output
- Supports RS485 communication function

- Multiple pressure units switchable
- 24V DC powered industrial design
- Aluminum housing with corrosion resistance
- High-strength transparent PC cover
- Fast response with strong anti-interference capability
- Suitable for cleanroom and HVAC applications
Technical Details
Product Type:
Pressure Gauge Controller
Material:
PA6 Plastic Housing + Aluminum Structure + PC Cover
Size:
120.65*46.32mm
Product Model:
EM2000H
Type:
Digital Differential Pressure Controller / Transmitter
Operating Temperature:
-20°C to +85°C
Accuracy:
±1.0%
Stability:
±1% FS
Power Supply:
10–35 VDC (2-wire system)
Pressure Range:
Up to -0.69 bar
Current Consumption:
Max 38 mA
Output Signal:
4–20 mA, RS485
Measurement Range:
±3000Pa
Display:
LCD digital display
Measurement Medium:
Air and non-flammable compatible gases
Weight:
211.6 g (net weight)
Temperature Stability:
±0.055% FS/°F
Installation:
Vertical
Pressure Units:
Pa / kPa / mBar / in.WC / mmWC
Connection Type:
Φ8 × 5 hose connection
Accessories
What is the EM2000H used for?
The EM2000H is used to measure differential pressure of air and non-flammable gases, commonly applied in HVAC systems, cleanrooms, and medical environments.
What output signals does the EM2000H support?
It supports RS485 communication and 4–20mA output, allowing easy integration with PLC or automation systems.
What is the accuracy of this differential pressure gauge?
The accuracy is ±1% FS, ensuring reliable and stable measurement results.
What media can it measure?
It is suitable for air and non-combustible compatible gases only.
Does it support multiple pressure units?
Yes, it supports Pa, kPa, mbar, in.WC, and mmWC, which can be switched freely.
Can the measurement range be adjusted?
Yes, the EM2000H supports adjustable range settings, making it suitable for different applications.
What power supply is required?
The device requires 10–35V DC power supply (typically 24V DC).
Does it have alarm or control functions?
Yes, it supports upper and lower limit alarms and switching functions, enabling pressure control applications.
How is the product installed?
It supports flush mounting and surface mounting, and should be installed vertically for best accuracy.
Can it be used in corrosive environments?
No, it is not recommended for corrosive gases or liquids unless specially protected.
What accessories are included?
It usually includes: Mounting screws Hose and connectors User manual
















