Healthcare & critical environments

Room pressure monitoring for hospitals and critical rooms.

We supply, install and commission Setra FLEX, SRCM and Lite room pressure monitors that track differential pressure, temperature and humidity, alarm at the door, and report to the BMS.

Request a Quote Overview

What it is

Critical environment monitoring is the continuous measurement of room conditions, mainly the pressure difference between a room and its surroundings, so staff can see at the door whether an isolation room, operating theatre or clean room is holding its required condition, and are alerted when it is not.

Setra room pressure solutions

Setra Systems room pressure monitors, selected, installed and commissioned by our team for each type of critical space in hospitals, pharmacies, laboratories and clean rooms across Saudi Arabia.

Guide: how to choose a room pressure monitor

Airborne infection isolation rooms

Negative pressure

Keeps the room negative to the corridor so airborne pathogens stay inside, with an audible and visual alarm if the door is left open or pressure is lost.

Setra FLEXSetra SRCMSetra Lite

Protective environment rooms

Positive pressure

Keeps the room positive so immunocompromised patients, such as transplant and oncology patients, are protected from corridor air.

Setra FLEXSetra SRCM

Operating theatres

Positive pressure, temperature, RH

Monitors positive pressure together with temperature and humidity on one screen at the theatre door.

Setra FLEX

Compounding pharmacies (USP 797 / 800)

Positive / negative cascade

Monitors the pressure cascade between ante-room, buffer room and hazardous-drug room, with temperature and humidity on the same screen.

Setra FLEXSetra Lite

Laboratories and clean rooms

Pressure, temperature, RH

Holds the designed pressure relationship between rooms and logs pressure, temperature and humidity for audits.

Setra FLEXSetra SRCM

Sterile processing, endoscopy and bronchoscopy

Pressure verification

A simple light-ring indicator for spaces where staff only need a quick pressure check at the door.

Setra LiteSetra FLEX

Setra room pressure monitors: FLEX, SRCM and Lite

Three Setra Systems monitors cover most hospital and pharmacy projects, usually one monitor per room. We help choose the right one for each room, then supply, install, program, connect to the BMS and commission it.

Setra FLEX

Environmental room monitor and controller with a 7-inch touch screen, monitoring 6 parameters per room.

6 parameters per room: differential pressure, temperature, humidity, air change rate and 2 user-defined
FLEX-RM monitoring only, or FLEX-RC monitoring and control of VAV boxes, venturi valves and reheat valves
High-accuracy ±0.25% pressure sensor, ranges ±12.5 to ±250 Pa (±0.05 to ±1.0 in WC)
7-inch capacitive touch screen, usable with medical gloves
Green, yellow and red room status with audible and visual alarms
BACnet/IP and BACnet MS/TP, BTL-compliant
IP54 face, resistant to VHP, chlorine dioxide and bleach cleaning
On-board or remote pressure sensor; 50 mm wall depth with a remote sensor
Configuration cloning by USB, 4 room profiles
Can also serve up to 3 rooms from one unit

Best for: Isolation rooms, operating theatres, pharmacies and labs that need full room monitoring, and control where required.

Full specifications

Setra SRCM

Room condition monitor with an industry-best accuracy differential pressure sensor and a 4.3-inch colour touch screen, monitoring 4 parameters.

4 parameters: differential pressure, temperature, humidity and one user-defined value such as air changes per hour
On-board dead-ended pressure sensor, ±0.25% or ±0.5% FS accuracy
Ranges from ±12.5 to ±1000 Pa (±0.05 to ±5.0 in WC)
4.3-inch dimmable colour touch screen with custom room names and banner text
Door alarm input
BACnet option, 4-20 mA / 0-5 / 0-10 VDC output and SPDT alarm relay
IP54 wipe-down flush face, mounts in a standard triple-gang box
Push-button zero and span calibration, USB cloning
Can also monitor and alarm two rooms from one device

Best for: Isolation and protective environment rooms where pressure accuracy matters most.

Full specifications

Setra Lite

Visual room pressure indicator with a bright green/red light ring and digital display, the size of a light switch.

Single-room differential pressure indication, POS or NEG room mode
Light ring green, red or yellow, visible at an angle or down the corridor
4-digit colour display in Pa or in WC, always-on or momentary
±0.5% FS accuracy, ranges ±50, ±100, ±250 Pa or 0–750 Pa
Optional audible alarm (up to 30 m), door alarm delay 0–999 s
Analog output 0-5 V, 0-10 V or 4-20 mA to the BMS
Fits a single-gang, 86 or round back-box; white or black, portrait or landscape
IP54, 24 VAC/VDC, works with FLEX for rooms with more than one door

Best for: Sterile processing, endoscopy, bronchoscopy, protective and isolation rooms, USP 797 and ASHRAE 170 spaces where a clear visual check is needed.

Full specifications

Compare FLEX, SRCM and Lite

Setra FLEX vs SRCM vs Lite comparison
	Setra FLEX	Setra SRCM	Setra Lite
Parameters per room	6: pressure, temperature, RH, air changes + 2	4: pressure, temperature, RH + 1	1: pressure
Pressure accuracy	±0.25%	±0.25% or ±0.5% FS	±0.5% FS
Control	Monitoring (RM) or monitoring + control (RC)	Monitoring	Indication + analog output
Display	7" touch screen	4.3" touch screen	Digital readout + light ring
Alarms	Audible + visual	Audible + visual	Visual, audible optional
BMS connection	BACnet/IP and MS/TP	BACnet option + analog	Analog output
Rooms per device	1, up to 3	1, up to 2	1
Mounting	Flush, triple-gang box	Flush, triple-gang box	Single-gang / 86 box

Setra, Setra Systems, FLEX, SRCM and Setra Lite are trademarks of Setra Systems, Inc. Product names are used only to identify the equipment we supply and install. Specifications are from Setra's published data sheets and may change; the final selection follows the approved project submittal.

Target sectors

Healthcare and hospitals

Isolation rooms, protective environment rooms, operating theatres, ICUs, hospital pharmacies, sterile processing and endoscopy.

Pharmaceutical industry

GMP clean rooms, production and filling areas, quality control laboratories and compounding facilities that must hold a pressure cascade and keep records.

Why it matters

Infection control

Negative-pressure isolation rooms keep airborne contaminants from reaching corridors; positive-pressure rooms protect vulnerable patients.

Visible status

A display at the room shows the live condition, so nurses and facility teams do not rely on assumptions.

Records for audits

Trend logs and alarm history support accreditation reviews and troubleshooting.

Options

Option	What it does
Monitoring only	Standalone room monitors with visual and audible alarms.
Monitoring and control	Siemens-based room control for HVAC equipment, room pressure, temperature, humidity and ventilation.
BMS integration	BACnet connection for central alarm management, historical logging and supervision.

Applications

Airborne infection isolation rooms
Protective environment rooms
Operating theatres
Pharmacies and compounding rooms
Laboratories
Pharmaceutical clean rooms

What we deliver

Design and engineering of the monitoring scheme
Supply of room monitors and sensors
Installation and cabling
Programming and configuration
BACnet integration with the BMS
Testing, commissioning and handover
After-sales support

How we deliver

DesignEngineering, device selection and submittals.
SupplyEquipment sourced to the approved specification.
InstallInstallation, cabling and programming on site.
Test & commissionTesting, integration and handover documents.
SupportAfter-sales support and maintenance.

FAQ

Where can I get Setra FLEX, SRCM or Lite monitors in Saudi Arabia?

Electrex Arabia supplies, installs and commissions Setra FLEX, SRCM and Lite room pressure monitors for hospitals, pharmacies, laboratories and clean rooms across Saudi Arabia, from its office in Riyadh. Send the room schedule or drawings and we reply with a technical and commercial offer.

What is a differential pressure room monitor?

A differential pressure room monitor measures the pressure difference between a room and the space next to it, usually the corridor, shows it at the door, and alarms when the room stops being negative or positive as designed. It is used in isolation rooms, operating theatres, pharmacies and clean rooms.

Setra FLEX, SRCM or Lite: which one do I need?

Choose FLEX for full room monitoring: 6 parameters per room (pressure, temperature, humidity, air change rate and two more), with control as an option. Choose SRCM for 4 parameters with an industry-best accuracy pressure sensor, ideal for isolation and protective rooms. Choose Lite where a simple green/red pressure indication at the door is enough.

Do Setra monitors connect to the BMS?

Yes. Setra FLEX supports BACnet/IP and BACnet MS/TP, SRCM is available with BACnet plus analog outputs, and Setra Lite provides an analog output. We map the points into the BMS for central alarms and trend logs.

Can room monitors work without a BMS?

Yes. A monitor can run standalone with a local display and alarms. Where a BMS exists, it can also connect over BACnet for central alarms and trend logs.

What is the difference between monitoring and control?

Monitoring measures and alarms. Control also adjusts HVAC equipment, such as dampers or valves, to hold the room at its setpoint.

Which pressure values should a room hold?

ASHRAE 170 sets a minimum of 2.5 Pa (0.01 in WC) for negative airborne infection isolation rooms and for positive protective environment rooms. The final setpoints come from the project specification, and we configure the monitors and alarm limits to the approved design.

Do you supply only, or install as well?

Both. We act as the main contractor for supply, installation, cabling, programming, testing, commissioning and documentation.

Can monitors be fitted in existing rooms?

Yes. The monitors flush-mount in standard electrical boxes, and FLEX offers an external pressure sensor for walls thinner than 50 mm, so they suit renovation projects as well as new hospitals.

Have drawings or a BOQ? Send them over.

Our engineers reply with a technical and commercial offer.

Request a Quote +966 56 193 2797

Room pressure monitoring for hospitals and critical rooms.

Setra room pressure solutions

Airborne infection isolation rooms

Protective environment rooms

Operating theatres

Compounding pharmacies (USP 797 / 800)

Laboratories and clean rooms

Sterile processing, endoscopy and bronchoscopy

Setra room pressure monitors: FLEX, SRCM and Lite

Setra FLEX

Setra SRCM

Setra Lite

Compare FLEX, SRCM and Lite

Target sectors

Healthcare and hospitals

Pharmaceutical industry

Why it matters

Options

Applications

What we deliver

How we deliver

FAQ

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Have drawings or a BOQ? Send them over.