1. Providing Cost Effective And Reliable Gas Detection Solutions Since 1975

2. WHO IS INTERSCAN? We manufacture and sell toxic gas analyzers/monitors/detectors and related data-logging products exclusively We manufacture our own patented electrochemical voltametric sensors for 18 gases

3. Interscan manufactures sensors for these gases: bromine bromine carbon monoxide carbon monoxide chlorine chlorine chlorine dioxide chlorine dioxide ethylene ethylene ethylene oxide ethylene oxide formaldehyde formaldehyde hydrazine(s) hydrazine(s) hydrogen hydrogen hydrogen bromide hydrogen bromide hydrogen chloride hydrogen chloride hydrogen cyanide hydrogen cyanide hydrogen sulfide hydrogen sulfide nitric oxide nitric oxide nitrogen dioxide nitrogen dioxide ozone ozone propylene oxide propylene oxide sulfur dioxide sulfur dioxide

4. WHAT ABOUT OUR PRODUCTS? We manufacture toxic gas detectors, primarily used for compliance monitoring in the workplace Interscan does not manufacture confined space entry monitors (typified by hand-held “4-gas” monitors---- generally measuring CO and H 2 S as well as % LEL and O 2 deficiency) Interscan does not manufacture outdoor environmental (EPA equivalence or reference) monitors Although Interscan is certainly aware of other detection methods, since we manufacture electrochemical voltametric sensors, this is our core competency and primary detection method We can provide other detection methods via systems integration and custom design

5. WHY CHOOSE INTERSCAN? Being both the manufacturer of the sensor and the instrument affords Interscan optimum applications flexibility Being both the manufacturer of the sensor and the instrument affords Interscan optimum applications flexibility We are a privately held company, providing reliable and affordable toxic gas detection solutions for more than 30 years We know how to solve your gas detection problem!

6. BASIC TERMS TLV : Threshold Limit Value TWA : Time-weighted average exposure concentration for a conventional 8 hour workday and a 40 hour work-week STEL : Short-Term Exposure Limit. Usually a 15 minute TWA exposure that should not be exceeded at any time during a workday Action Level : This is for benchmark purposes for the initial screening of a workplace. This level is one-half of the allowable 8 hour TWA for a particular substance. Should levels equal or exceed this amount, then regular monitoring must be employed ppm (Part Per Million) 1 ppm= 1,000 ppb. 1%= 10,000 ppm ppb (Part Per Billion) 1 ppb = 0.001 ppm

7. GAS DETECTION: A SIMPLIFIED HISTORY Early 1900s combustible gas was being detected in mines MSA started in 1914 % LEL Detection (Methane LEL = 5.0%) O 2 Deficiency I.H. Section of the American Public Health Assoc. started in 1914

8. 40 Years or so after - I.H. section blossomed into the two associations we know today A.C.G.I.H Until this point, gas detection consisted of % level measurements Monitoring for combustibles does not require specificity Pioneers of toxic gas detection: Early 1970s A.I.H.A. Monitoring for combustibles does not require sensitivity GastechMSARikenDräger 1975 Interscan Corporation 1973 Energetics Science (Ecolyzer)

9. MONITORING PRODUCTS OFFERED BY

10. PORTABLE ANALYZER

11. CONTINUOUS MONITORING SYSTEM SINGLE POINT APPLICATION

12. CONTINUOUS MONITORING SYSTEM TWO POINT APPLICATION

13. CONTINUOUS MONITORING SYSTEM MULTI-POINT (THREE OR MORE) APPLICATION

14. For Survey Applications, We Recommend Our Nomad Data Logger 16-bit resolution Models available for voltage and 4-20mA inputs Self-contained units also available for temperature, humidity and pH Sampling rate adjustable—1 second to 10 hours in 1 second intervals Storage capacity—522,240 readings Excellent software included

15. Visualize your measurement session with an auto-scaling time history graph

16. Time history graph detail screen Zoomed in on particular portion of the curve

17. Ability To View All Individual Data Points

19. ARC-MAX ® DATA ACQUISITION, ARCHIVING, AND REPORTING PACKAGE

20. ARC-MAX ® MAIN SCREEN

21. ARC-MAX ® SHIFT REPORT

22. ARC-MAX ® TRENDING

23. ARC-MAX ® ALARM LOG

24. For 30 years Interscan has provided products ranging from the very simple…to the most creative in system integration Our equipment has been installed in multi-level parking garages, steel plants, hospitals, pulp and paper mills, power plants, water treatment plants, and military/aerospace applications… to name but a few Whether the instrument is one of our Vikane® monitors-- the definitive clearance device used in the building fumigation industry-- or our Halimeter® (as seen in thousands of dental offices around the world) you can always count on Interscan for product reliability, integrity and matchless support.

25. Our Support Team stands ready to help you! 1800 458-6153 www.gasdetection.com Sales and Product Applications: Richard Shaw, Extension 122 richard@gasdetection.com Sales and Order Entry: Lorienne Shaw, Extension 124 lori@gasdetection.com Order Status: Chrisi Saje, extension 120 chrisi.saje@gasdetection.com Service and Parts: Rose Stransky, extension 139 rose.stransky@gasdetection.com