Instrumentation/Monitoring Equipment

Oxygen Level Personal Alarm

Alaco Ladder Co.

ASCMasterTek

BW Technologies

CEA Instruments, Inc.

Crowcon Detection Instruments

CSE Corp.

Direct Safety Co.

Draeger Safety Inc.

Electronic Safety of Houston, Inc.

Enmet Corp.

Fisher Safety

General Monitors

GfG Instrumentation, Inc.

Industrial Scientific Corp.

Mil-Ram Technology, Inc.

MSA

Oilind Safety

RAE Systems

RKI Instruments, Inc.

Safety Supply Illinois Inc.

Sensidyne, Inc.

Sierra Monitor Corp.

SKC, Inc.

Thermo Electron Corp.

Thermo Gastech

VWR International

Zee Medical, Inc.

Zellweger Analytics, Inc.