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Touchscreen Room Pressure Monitor (AI-CRS4-IA-TFT-5)
Differential Pressure, ACH, Temperature and Humidity on one 5 inch touchscreen. A room monitor that shows staff at a glance whether an isolation room or operating theatre is holding its conditions, and alerts them when it is not.
Differential Pressure
Four room readings on one screen, with an alarm when one goes wrong
The Ace Instruments Touchscreen Room Pressure Monitor (AI-CRS4-IA-TFT-5) is a multi-parameter room monitoring system that continuously monitors differential pressure, temperature, humidity, and air changes per hour (ACH). It uses a 5 inch touchscreen display to present these critical room conditions in one place, so hospital staff do not have to read four separate instruments.
Instant audio visual alerts on a limit violation help staff respond before a pressure excursion compromises the controlled environment. The monitor suits hospital isolation rooms and operating theatres, and it also serves pharmaceutical cleanrooms and containment laboratories. RS-485 Modbus communication makes it easy to connect to BMS, EMS, and SCADA systems.
Three sensing elements, four readings
- Differential pressure: An in-built sensor with positive and negative hose nipples measures the pressure difference between the room and its reference space, such as the corridor.
- Temperature and humidity: A digital combination sensor on a 5 m cable measures both, and the cable length lets you place the sensor where the room's conditions are most representative.
- ACH: An external ACH transmitter with a 4 to 20 mA output is installed in the duct. The ACH measurement can be programmed between 0 and 1000 ACH, depending on the room and duct size.
Read, configure, acknowledge
The touchscreen shows all four readings together. Operators use the same screen to configure settings and acknowledge alarms, so no separate programming device is needed. When a reading passes a configured limit, the monitor gives an audio visual alarm. RS-485 Modbus sends the measurements to a central system.
Illustrative screen values. The red tile shows a reading outside its configured limit.
Built for rooms that must hold their conditions
5 Inch Touchscreen Showing Four Parameters
Differential pressure, temperature, relative humidity, and ACH on one screen
Audio and Visual Alarm
An immediate alert when a configured limit is violated
Configurable High and Low Limits
Set pressure alarm limits to suit the room and your monitoring strategy
Touchscreen Configuration and Alarm Acknowledgement
Settings and alarm acknowledgement are handled at the screen
RS-485 Modbus Communication
Integration with BMS, EMS, SCADA, and other centralized monitoring systems
Positive or Negative Pressure Monitoring
Choose the pressure range for the application
Digital Temperature and Humidity Sensor with 5 m Cable
Flexibility in sensor placement
Easy Wall Mounting
Suits modular wall panels and brick walls, in new projects and retrofits
Where the AI-CRS4-IA-TFT-5 is used
Hospital Isolation Rooms
Maintains negative pressure to keep airborne contaminants from escaping into adjacent corridors and wards. Continuous readings help infection control teams verify containment in real time, which supports hospital audits and accreditation reviews.
Operating Theatres
Tracks differential pressure, temperature, humidity, and ACH together, so the theatre can be kept within its validated conditions throughout a procedure. Pressure or airflow deviations are seen as they happen.
Pharmaceutical Cleanrooms
Supports the pressure cascades that cGMP and EU GMP Annex 1 expect, so air flows from cleaner zones to less clean ones. It also gives QA teams a documented record of environmental control.
ICUs and Isolation Wards
Delivers continuous differential pressure readings so nursing and infection control staff can confirm that isolation protocols are holding, especially during high risk patient care. Early alerts on pressure drift allow corrective action before containment is compromised.
HVAC and BMS Integrated Facilities
RS-485 Modbus connectivity brings pressure, temperature, and humidity from many rooms into one central view. This reduces manual rounds and speeds up the response to out of range conditions.
Biosafety and Containment Labs
Monitors the air change rate and pressure differential that matter in laboratories handling hazardous or infectious materials. Reliable data supports operator safety and regulatory documentation.
Pressure shows the relationship. ACH shows the ventilation.
Two readings, two different facts
Differential pressure shows the pressure relationship between spaces, and ACH shows how fast the air in the room is being replaced. A room can hold its pressure while its air change rate has dropped, for example when a filter loads or a damper moves, and the reverse can also happen.
A fuller picture on one screen
Watching both on the same screen gives facility teams a fuller picture of ventilation and containment than either reading gives alone.
One monitor for both pressure directions
The monitor measures the pressure difference between two points, so it works for both pressure directions. Choose the range for your application.
Negative pressure rooms
Rooms such as isolation rooms keep contaminated air inside the room so it cannot escape into the corridor.
Positive pressure rooms
Rooms such as operating theatres and pharmaceutical cleanrooms keep outside air from entering the protected space.
The direction and the limits come from your design and validation documents. The monitor then watches the room against whatever limits you set.
Seen and heard by staff nearby
You configure high and low pressure alarm limits to the requirements of the room and the facility's monitoring strategy. When a limit is violated, the monitor gives an audio visual alarm, so staff nearby see and hear that the room needs attention. Staff acknowledge the alarm at the touchscreen once they have seen it.
Two standard ranges, custom ranges available on request
Isolation rooms and cleanrooms usually operate at small pressure differences, so the narrower range gives better resolution, and the wider range suits applications where larger differences are expected. Choose the range that covers your normal operating pressure with room to spare.
Designed for flexible installation, in new builds and retrofits
The monitor suits both modular wall panels and brick walls, which makes it a fit for new builds and for retrofits in existing healthcare facilities. Plan three things before installation:
Wall position
Choose a wall position where staff can read the screen easily.
Pressure tubing
Plan the route for the pressure tubing from the hose nipples to the room and its reference space.
ACH transmitter
Decide the duct location for the ACH transmitter, and the cable route from the duct back to the monitor.
Room Pressure Monitor or ACH Monitor?
Only air change rate
If air change rate is the only thing you need to track, the Hospital Room ACH Monitor with Touch Screen is a dedicated ACH instrument.
Pressure, temperature, humidity, and ACH
If you need pressure, temperature, and humidity as well as ACH, this monitor shows all four on one screen. A larger 7 inch version of the four parameter monitor, the AI-CRS4-IA-TFT, is part of the same family.
Technical specifications
A continuous record for your quality system
The monitor gives a continuous measurement and an alarm indication for critical room parameters. Its RS-485 Modbus communication lets the measurements be stored in a centralized monitoring system, which supports facility monitoring and documentation requirements. Periodic calibration and verification should follow your facility's quality procedures.
Supports regulated facilities
Isolation rooms and operating theatres are governed by standards that set ventilation and pressure requirements, including ASHRAE 170, CSA Z317.2, HTM 03-01, AS 1668.2, and Saudi MOH regulations. The required air change rates and pressure values differ between standards and between room types, so confirm the values that apply to your facility.
The monitor does not make a room compliant by itself. It supplies the continuous measurement and the instant alarm that facility teams need to show the room is holding its required conditions, and it sends the data to a central system for the audit ready record regulators expect. In pharmaceutical settings, it supports the pressure cascades that cGMP and EU GMP Annex 1 expect between classified zones. Ace Instruments manufactures under an ISO 9001:2015 certified quality management system.
Frequently asked questions
1. What is the Touchscreen Room Pressure Monitor?
The Touchscreen Room Pressure Monitor is a multi-parameter room monitoring system designed to continuously monitor differential pressure, temperature, humidity, and air changes per hour (ACH). It uses a 5 inch touchscreen display to present critical room conditions in one place.
2. Why is room pressure monitoring important in hospital isolation rooms?
Isolation rooms rely on controlled pressure to help prevent airborne contaminants from moving into surrounding areas. Continuous differential pressure monitoring allows hospital staff to identify pressure loss quickly and take corrective action when required.
3. What parameters can the monitor display?
The AI-CRS4-IA-TFT-5 can display four key parameters: differential pressure, temperature, relative humidity, and air changes per hour (ACH). These parameters can be viewed through the touchscreen interface, providing a consolidated view of room conditions.
4. What is the benefit of monitoring ACH along with room pressure?
Differential pressure indicates the pressure relationship between spaces, while ACH provides information about the rate at which air is replaced in the room. Monitoring both parameters gives facility teams a broader understanding of ventilation and containment conditions.
5. Can the monitor be used for negative pressure isolation rooms?
Yes. The monitor is suitable for negative pressure isolation rooms where maintaining the required pressure relationship is important for containment. It can continuously display the pressure condition and provide an alert when configured limits are violated.
6. Can it also be used for positive pressure rooms?
Yes. The monitor can be configured for applications requiring positive or negative pressure monitoring, depending on the selected pressure range and application requirements.
7. How does the touchscreen make room monitoring easier?
The touchscreen provides a graphical interface for viewing measured parameters, configuring settings, and acknowledging alarms. Operators can access the required information directly from the room monitor without needing a separate programming device.
8. What happens when the room pressure goes outside the configured limit?
The monitor provides an audio visual alarm when a configured limit is violated. This gives personnel an immediate indication that the room condition requires attention.
9. Can high and low pressure alarm limits be configured?
Yes. High and low pressure alarm limits can be configured according to the requirements of the particular room and facility monitoring strategy.
10. Can the monitor be used in operating theatres?
Yes. The monitor is suitable for operating theatres where differential pressure, temperature, humidity, and ventilation conditions need to be continuously monitored during procedures.
11. Is the monitor suitable for pharmaceutical cleanrooms?
Yes. The system can be used in pharmaceutical cleanrooms and controlled production areas to monitor pressure cascades and other environmental parameters. It can support monitoring requirements associated with controlled and validated environments.
12. Can the monitor be connected to a BMS or SCADA system?
Yes. RS-485 Modbus communication is provided for integration with BMS, EMS, SCADA, and other centralized monitoring systems. This allows room parameters to be viewed and managed from a central location.
13. What differential pressure ranges are available?
The monitor is specified with differential pressure ranges of -100 to +100 Pa and -500 to +500 Pa. The appropriate range should be selected according to the pressure requirements of the application.
14. What temperature and humidity ranges can it monitor?
The specified temperature measurement range is -10 to +60°C, with an accuracy of ±0.5°C. Relative humidity is measured from 0 to 100% RH with an accuracy of ±1.8%.
15. How is ACH measured by the system?
The system uses an external ACH transmitter with a 4 to 20 mA output for duct installation. The ACH measurement can be programmed between 0 and 1000 ACH depending on the room and duct size.
16. Can the monitor be installed in existing hospital rooms?
Yes. The monitor is designed for wall installation and is suitable for both modular wall panels and brick walls. This makes it suitable for new projects as well as retrofit installations in existing healthcare facilities.
17. Can the monitor help with compliance and documentation?
The monitor provides continuous measurement and alarm indication for critical room parameters. Its RS-485 Modbus communication also allows the measurements to be incorporated into centralized monitoring systems, supporting facility monitoring and documentation requirements.
18. How do I select the right Touchscreen Room Pressure Monitor configuration?
Selection should be based on the type of room, positive or negative pressure requirement, differential pressure range, temperature and humidity monitoring requirements, ACH measurement requirements, alarm strategy, and BMS, EMS, or SCADA integration needs. Cleanroom Monitors can help select the appropriate configuration for isolation rooms, operating theatres, pharmaceutical cleanrooms, ICUs, containment laboratories, and other controlled environments.
19. How does the AI-CRS4-IA-TFT-5 compare to other room pressure monitors like Setra FLEX, Setra Lite, TSI PresSura, and similar brands?
The AI-CRS4-IA-TFT-5 belongs to the same category of room pressure monitors as Setra FLEX, Setra Lite, TSI PresSura (RPM10 and RPM20), BAPI, Veriflow, and Kele. These devices are used across hospitals, pharmaceutical cleanrooms, and laboratories to continuously track differential pressure, temperature, humidity, and air changes per hour (ACH). The AI-CRS4-IA-TFT-5 offers a touchscreen interface for on screen configuration, configurable high and low alarm limits with audio visual notification, and RS-485 Modbus connectivity for BMS and SCADA integration. It supports the monitoring needs of the isolation room and cleanroom standards these monitors serve, including ASHRAE 170, CSA Z317.2, and other regional standards, and it is backed by Ace Instruments 30+ years of cleanroom instrumentation manufacturing and direct application support.
Need help choosing?
Tell us your room type, pressure range, and BMS requirements and our application engineers will configure the right AI-CRS4-IA-TFT-5 for you.
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