Wireless Pneumatic Thermostat by Cypress Envirosystems

The Wireless Pneumatic Thermostat (WPT) retrofits existing pneumatic thermostats to deliver direct digital control (DDC) functionality in minutes. Compared with a cost of $2,500 or more per zone for implementing DDC systems, the WPT costs less than 20 percent as much, and it may be installed in under 20 minutes with minimal disruption of occupants. It enables remote temperature sensing and control of setpoints, programmable zone control and night setback, automatic self-calibration, BACnet integration with existing automation systems, and enables use with utility Demand Response programs. It uses the Open-ADR communications standard developed by Lawrence Berkeley National Laboratories.