TSI RPM20 PresSura Hospital Multiple Room Pressure Monitor


The PresSura™ RPM20 Room Pressure Monitor is designed to accurately measure pressure differentials in specialised hospital rooms. Backed by TSI’s unique thermal-based pressure sensor, the PresSura products offer the most accurate, precise, and stable measurement available. These products continuously measure room pressure, verifying proper airflow and pressure direction in Airborne Infection Isolation (AII) Rooms, Protective Environment (PE) Rooms, and Operating Rooms (ORs). PresSura products help hospitals ensure safety for patients and staff.


The RPM20 is an excellent choice for monitoring multiple rooms, like a combination isolation room and ante room. It also accepts temperature and relative humidity inputs for comprehensive monitoring in Operating Rooms. A local monitor provides easy visual indication of room status. If pressure is lost, the RPM20 activates audible and visual alarms, alerting staff to the alarm condition. The RPM20 features adjustable alarm delays to avoid nuisance alarms.



  • Audible and visual alarms warn staff of unsafe conditions
  • Complies with ANSI/ASHRAE/ASHE Standard 170-2013, Ventilation of Health Care Facilities
  • Meets the Facility Guidelines Institute (FGI) 2015, Guidelines for Design and Construction of Health Care Facilities
  • Meets US Centers for Disease Control (CDC), Guidelines for Environmental Infection Control in Health Care Facilities
  • Accurate pressure measurement based on TSI’s thermal anemometry
  • Capable of monitoring up to 2 isolation rooms and 1 ante room
  • Accepts measurements from temperature and relative humidity sensors
  • Seamlessly integrates into building automation systems via BACnet or Modbus
  • Easy-to-read color touch screen display provides simple visual indication of room status
  • Accepts key switch to change room mode to neutral/no isolation
  • Easy configuration via local programming on display
  • Passwords prevent unauthorised access to monitor functions


  • Operating Rooms (ORs)
  • Airborne Infection Isolation (AII) Rooms
  • Compounding Pharmacies
  • Pandemic Preparedness Rooms
  • Intensive Care Units
  • Laboratories and Vivariums
  • Burn Units


PresSura Room Pressure Products Introduction

Simplify a Challenging Joint Commission Requirement with PresSura



TSI NSD8 Nurses Station Monitor

TSI 800243 PresSura Through-The-Wall Room Pressure Sensor


TSI 8692 Remote Audible Alarm

TSI 8694 Room Pressure Switch

TSI 8694-3 Room Pressure Switch

TSI 8694-4 Room Pressure Alarm

TSI 8694-5 Room Pressure Switch with Alarm

TSI 8694-6 Room Pressure Switch with Alarm

TSI 8694-7 Room Pressure Switch with Alarm

TSI 8694-8 Room Pressure Switch with Alarm


TSI CV-108-L-H-S-A-X-X Constant Volume Venturi Valve

TSI VV-108-L-H-S-A-X-L Venturi Valves for SureFlow Controls

TSI SV-108-L-H-S-A-X-L Volume Venturi Valve with Shutoff

Additional information


TSI RPM20 Standard, TSI RPM20-LON LonWorks, TSI RPM20-PT Pressure Transducer, TSI RPM20-PT-LON Pressure Transducer LonWorks