Pressure Monitoring Sensors
Maintain Airflow Integrity and Environmental Safety
Controlling pressure differentials is a foundational requirement in cleanrooms, compounding pharmacies, isolation rooms, and other sensitive spaces. Positive or negative pressure must be consistently maintained to prevent contamination, control airborne particles, and protect both products and personnel. Rees Scientific offers a full suite of differential and static pressure monitoring solutions to help you ensure safe, compliant, and validated conditions, room to room, zone to zone.
Why Pressure Monitoring Is Critical
Pressure differentials are what define the boundaries of contamination control. Whether you're preventing pathogens from escaping an isolation room or protecting sterile processes from outside air, pressure control ensures that clean air flows in the right direction.
Improper pressure conditions can result in:
- Microbial or particulate contamination
- Cross-contamination between production zones
- Noncompliance with USP <797>, <800>, or ISO 14644 standards
- Disruption of airflow classifications in cleanroom
- Failed audits and regulatory penalties
Pressure monitoring is not just a mechanical requirement, it's a regulatory expectation and a cornerstone of quality assurance.
Our Pressure Monitoring Capabilities
We offer both differential pressure sensors and static pressure transmitters, all compatible with our environmental monitoring system and compliant with leading regulatory standards.
Differential Pressure Transmitters
Our differential pressure sensors are designed for high-sensitivity applications, detecting even slight changes in pressure between rooms or zones. With options ranging from standard to ultra-low pressure detection, these sensors are essential for ensuring directional airflow.
Applications:
- Positive pressure cleanrooms in pharmaceutical production
- Negative pressure isolation rooms in hospital settings
- Anterooms, pass-throughs, and buffer zones
- BSL labs and containment spaces
- GMP manufacturing suites
Key features:
- Ultra-low range options
- Analog outputs and digital data exchange
- ISO 17025 calibration available
- DIN-rail power options and panel enclosures
- Flush-mount ports for cleanroom applications
Static Pressure Transmitters
Static pressure transmitters are ideal for monitoring pressure within a single space, such as inside ductwork, plenum chambers, or pressurized rooms.
Applications:
- Verifying airflow velocity in HVAC ducts
- Monitoring HEPA filter pressure drop
- Ensuring system balance in large buildings
- Validating AHU and cleanroom performance
Pressure Switches
Our pressure switches act as fail-safes, triggering alerts when pressure exceeds or drops below a defined threshold. These are essential for redundant alarm systems and system interlocks.
Applications:
- Emergency ventilation failure alerts
- Filter clog detection
- Redundant compliance protection in compounding and containment zones
Enclosures & Signal Conditioning
Rees Scientific offers customizable, customer specific pressure monitoring installations tailored to your facility’s layout and regulatory needs. Our solutions are ideal for integration into complex BMS or EMS platforms, with flexible output formats and engineered support for seamless connectivity.
Designed for Cleanroom & Pharmacy Compliance
Our pressure sensors are engineered to meet the needs of:
- ISO 14644-1 cleanrooms
- USP <797> and <800> compounding pharmacies
- FDA-regulated production environments
- GxP manufacturing areas
- CAP and Joint Commission-audited facilities
Supported compliance features include:
- ISO 17025 traceable calibration (available)
- Electronic audit trails (21 CFR Part 11)
- Redundant alarms and relay outputs
- Integration with validation and mapping services
Seamless System Integration
All pressure sensors interface directly with the Rees Monitoring System for real-time data capture, analysis, and reporting. Data can also be:
- Transmitted to Building Management Systems (BMS) or SCADA platforms
- Logged in secure, traceable formats
- Monitored remotely via dashboards
- Used in conjunction with other sensors (temperature, humidity, particles)
Our wireless transmitters make retrofits simple in older buildings or mobile cleanrooms, while our wired configurations offer robust reliability in high-security or high-EMI areas.
Trusted Across Regulated Environments
Pharmaceuticals & Biotech
- Pressure cascade validation in multi-room production areas
- Positive pressure maintenance in sterile manufacturing zones
Hospitals & Pharmacies
- Ensuring USP <800> compliance in negative-pressure HD compounding areas
- Monitoring positive pressure for sterile compounding under <797>
Cleanrooms & Research Labs
- Maintaining controlled pressure transitions between ISO-classified zones
- Monitoring containment in BSL labs or vivariums
Rees Scientific: Experts in Environmental Control
We don’t just monitor, we help you design a fully compliant pressure control ecosystem. From selection and placement of sensors to integration with alarm systems and validation protocols, our team ensures every component is aligned with your regulatory and operational needs.
We offer:
- Onsite installation and calibration
- Custom enclosure design
- Validation and mapping documentation
- Ongoing technical support and system training
- 24/7/365 service availability
Whether you’re building a cleanroom, expanding your pharmacy, or auditing your HVAC performance, Rees Scientific offers the expertise, service, and technology to ensure your pressure conditions are safe, compliant, and fully documented.