Electrochemical Sensors feature tamper-resistant housings.

MSA May 01, 2006

Press Release Summary:

Designed to detect carbon monoxide, nitrogen dioxide, or refrigerants in air, Z Gard(TM) S uses solid state or electrochemical sensors, which generate representative output signal proportional to calibrated operating range. APOGEE Anywhere output allows sensors to communicate with other APOGEE Building Solutions over centralized network. Z Gard S is available in 4-20 mA analog output version as well as addressable RS-485 digital output model.

Original Press Release:

MSA Releases Z Gard(TM) S Sensor with APOGEE Anywhere Capability

PITTSBURGH, February 2006 --MSA (NYSE: MSA) is pleased to announce the release of
the Z Gard(TM) S Sensor for the detection of carbon monoxide, nitrogen dioxide or refrigerants in air with the APOGEE Anywhere product enhancement. This economical and reliable product uses solid state or electrochemical sensors which generate a representative output signal proportional to the calibrated operating range. The new APOGEE Anywhere output allows these sensors to communicate with other APOGEE Building Solutions over a centralized network. Integrating Z Gard S Sensors into this network provides greater safety, convenience and efficiency with low installation and ownership
costs.

All Z Gard S Sensors are available with two other output versions. The 4-20mA analog output version can be installed as a stand-alone sensor typically integrated with the Z Gard C Controller or common commercial equipment including PLC, DCS or building automation systems. The Z Gard S Sensor version with addressable RS-485 digital output is specifically designed to operate with any Z Gard C 485 Controller, operating as a system.

Additional features of the Z Gard S Sensor include:
o Standard PVC tamper-resistant housing
o Sensor and electronics housed in a steel cover plate mounting to box
o Green "OK" LED showing sensor status
o Jumpers to drive the output top percentages of full-scale

For more information on the Z Gard S Sensor, visit www.MSAliterature.com or contact your nearest MSA sales representative. To learn about MSA and our other high quality products, visit our web site at www.MSAgasdetection.com

*Trademark of Siemens Building Technologies, Inc.