Test Instruments

DRAEGER 22 STANLEY 14 EMERSON PROFESSIONAL TOOLS CA 13 MILWAUKEE ELECTRIC TOOL 11 STARRET PRECISION 11 CONCEPT CONTROLS 10 PRECISION BRAND 10 PELICAN CANADA ULC 9 3M 7 TECHNIWELD 7 KLEIN TOOLS 5 PRAXAIR 5 BUMPER TO BUMPER 4 LENCO WELDING 3 TYCO 3 BW TECHNOLOGIES LP 2 EECOL ELECTRIC 2 H. PAULIN 2 ITM INSTRUMENTS 2 JORDAIR COMPRESSORS 2 PRAXAIR DISTRIBUTION INC 2 SOWA TOOL & MACHINE 2 STEWART WARNER 2 TRINITEC 2 AIR LIQUIDE 1 AVIALL SERVICES 1 BRADY 1 CRC EVANS 1 CROSBY 1 DRAEGER CANADA LTD. 1 ELECTRONIC CONNECTIONS 1 G2S TOBEQ INC. 1 GESCAN 1 GRAY TOOLS 1 JUSTRITE 1 KAR INDUSTRIAL 1 L.S. STARRETT CO OF CANADA LTD 1 MILLER ELECTRIC MFG LLC 1 MITUTOYO CANADA INC 1 MSA SAFETY SALES, LLC 1 NATIONAL ENERGY EQUIPMENT 1 SNAP-ON 1 WAREHOUSE SERVICES 1 WESTBURNE ELECTRIC SUPPLY 1

Pelican Products 29 Drager 20 Calibration Testing Gas 14 ALTAIR® 2X Gas Detector 13 GALAXY® GX2 Automated Test System 13 Jet Equipment & Tools 12 L.S. Starrett 11 Milwaukee 11 0 10 Precision Brand 10 Proto 9 RAE Systems 9 Williams 9 JET 8 Ridgid Tool 8 Praxair 7 3M 6 Klein Tools 5 Mahle Clevite 4 Draeger 3 ITC 3 RIDGID 3 ALTAIR® 5X Multigas Detector 2 ALTAIR® Pump Probe 2 CDI Torque Products 2 G.A.L. Gage 2 Jordair Compressors 2 Magnaflux 2 Mueller Electric 2 Powerweld 2 REED Instruments 2 Sowa 2 Stewart Warner 2 Techniweld 2 Trinitec 2 ALTAIR® Single-Gas Detector 1 Aviall Services 1 Brady 1 DEWALT 1 DeWalt 1 Edwards-Signals 1 Emerson 1 Gasco 1 Gray Tools 1 Jackson Safety 1 Jet 1 Justrite 1 Kar Industrial 1 Lang Tools 1 MSA Link Pro is now Safety io Grid Fleet Manager 1 Mathey Dearman 1 Maxweld 1 Miller Electric 1 OTC 1 Pomona Electronics 1 STANLEY 1 Snap-On 1

Feeler Gauge Set 16 Protector Case with Foam 16 Clamp Meter 14 Detection Tube 13 Case with Foam 11 Case with Foam and Lock 10 Feeler Gauge Blade 10 Infrared Thermometer 10 Sensor 10 Voltage Tester 10 Digital Caliper 9 Multimeter 9 Micrometer Setting Standard 8 Protector Case 8 Dial Indicator 7 Gas Regulator with Pressure Switch 7 Micro Case 7 Outside Micrometer with Ratchet Stop 7 Protector Long Case with Foam and Wheel 7 Automated Test System 6 Gas Regulator 6 Battery Charger 5 Contractor's Portfolio 5 Docking Station 5 Gas Monitor Docking Station 5 Protector Case with Foam and Wheel 5 Replacement Sensor 5 Test Lead Set 5 Calibration Kit 4 Carrying Case 4 Depth Micrometer 4 Digimatic Indicator 4 Micrometer Set 4 Outside Micrometer 4 Plastigauge 4 Probe with Filter 4 Protective Case 4 Protector EMS Case with Organizer and Divider 4 Sampling Line 4 Screw Pitch Gage 4 Vernier Caliper 4 Case with Lid Foam 3 Cube Case with Foam 3 Dial Indicator with Back Lug 3 Dial Test Indicator 3 Micrometer 3 Paint Marker 3 Probe Tubing Kit 3 Sampling Pump 3 Sampling Pump Module 3 Sensor Kit 3 Smoke Sensor 3 Test Lead 3 Vehicle Battery Charger 3 Alarm Amplifier 2 Alligator Clip 2 Calibration Gas Cylinder 2 Calibration Gas Kit 2 Calibration Station 2 Caliper 2 Circuit Tester 2 Confined Space Kit 2 Continuity Tester 2 Demand Flow Regulator 2 Digital Micrometer 2 Docking Module without Charging Cable 2 Extendible Probe 2 Gas Monitor Test Station 2 High Pressure Regulator 2 Hour Meter 2 Housing 2 Insert 2 Inside Micrometer Set 2 Magnetic Base with Fine Adjustment 2 Multigas Detector Module 2 Multigas Detector Module with Pump 2 Organic Vapor Monitor 2 Outside Micrometer Set 2 Pipe Flange Aligner 2 Probe 2 Protector Transport Case with Foam and Wheel 2 Quad Sensor Screen Filter 2 Radius Gage Set 2 Replacement Filter 2 Sampling Probe 2 Storm Case 2 Telescoping Gage 2 Telescoping Gage Set 2 Thermometer 2 Activated Carbon Filter 1 Air Case with Foam 1 Air Quality Monitor 1 Alarm Muffler 1 Alligator Clip Set 1 Aspirator Pump Kit 1 Back Plate with Magnet 1 Barrier Water Oxygen Sensor 1 Base Station 1 Battery Charger with Datalink Cable 1 Battery Charger with North American Plug 1 Battery Cover 1 Battery Latch 1 Belt Clip 1 Bore Gauge 1 Buried Marker 1 Cable Kit 1 Cable Tracer with Probe Tone Kit 1 Calibration Cap 1 Calibration Carrying Case 1 Calibration Gas Regulator 1 Calibration Testing Gas 1 Carryon Case with Lid Foam 1 Category 5E Cable 1 Center Gage 1 Circuit Tracer Kit 1 Circuit Tracing Kit 1 Combustible Gas Detector 1 Cylinder Holder 1 DMM Case Kit 1 Datalink Module 1 Demand Regulator 1 Detector Chip 1 Dial Caliper 1 Dial Indicator with Lug 1 Dial indicator 1 Diffusion Cap Assembly 1 Digital Camera Kit 1 Digital Height Gauge 1 Dilution Tube 1 Display Connector Kit 1 Dual Rod 1 Dust Filter 1 Dust Filter/Water Stop 1 Edge Finder 1 Electrical Tester with FieldSense Technology 1 Electronic Cylinder Holder 1 Electronic Theodolite 1 Enabler Kit 1 Environmental Meter 1 External Filter Kit 1 Field Indicator 1 Fillet Weld Gauge 1 Filter 1 Filter Cover Assembly 1 Filter Sensor 1 Floating Sonde 1 Folding Rule 1 Folding Ruler 1 Front Assembly Case 1 Front Enclosure 1 Front Housing with Integrated Dust Filter 1 GFI Circuit Tester 1 Gage Set 1 Gas Detector Pump 1 Gas Lamp Tester 1 Gasket 1 Gauge Adapter 1 Hand Tachometer 1 Hard Case 1 Holder 1 IR Connectivity Kit 1 Indicator 1 Infrared Thermometer Kit 1 Infrared/Contact Thermometer 1 Inline Dust Filter 1 Inline Water Stop 1 Insulation Tester 1 Insulator 1 Jobbers Drill Gage 1 LCD Assembly 1 LCD Frame 1 LCD Frame Assembly 1 LCD Kit 1 Laser Distance Meter 1 Leak Detector 1 Lid Organizer 1 Line Locator 1 Line Locator with Bluetooth® and GPS 1 Long Case with Lid Foam 1 Low Pressure Switch 1 Luer Fitting 1 Magnetic Back 1 Magnetic Dial Indicator Stand 1 Magnetic Stand 1 Main PCB and Sensor PCB Kit 1 Master Accessory Set 1 Master Feeler Gauge Set 1 Master Test Lead Set 1 Matched Flow Regulator 1 Meter Hanging Kit 1

ALTAIR® 4X 3 GasAlertMax XT II 2 Ventis® Pro 5 2 T40 Rattler™ 1 Tempilstik® 123 Pelican Products 90 Thermomelt® 85 BW™ Flex 12 BW™ Flex-i 12 DSX™ 6 SureGrip™ 6 Protector Case™ 5 SafeCore™ 4 ALTAIR® 5X 3 Portagas™ 3 Temp-Gun™ 3 ALTAIR® Pro 2 AlarmAmp™ 2 Fluke 2 GasAlertMicro 5 2 IntelliDoX 2 M-SPECTOR 360™ 2 M12™, Temp-Gun™ 2 MicroDock II 2 Quik Stik® 2 Radius™ BZ1 2 STM 2 Tango® 2 V-Cal™ 2 ALTAIR® 2X 1 ALTAIR®/Xcell® 1 Absolute® 1 Alarm Muffler 1 BMP®71 1 BlackBox™ 1 Boeing 1 CALGAZ 1 Circuit Seeker 1 Curv-O-Mark 1 DEWALT 1 DSX™, SafeCore™ 1 ESM™ 1 Empire® 1 Fast Dry® Paintstik® 1 Fisher™ 1 Gas Miser® 1 GasAlertMicroClip XL 1 GasAlertMicroClip XT 1 GasBadge® 1 HDE, V-Watch® 1 Hard Point™ 1 JetEye 1 M12™ 1 Micro IR-200 1 Milwaukee?® 1 Minigrabber® 1 Omni Marker™ 1 Pac® 6000 1 Portagas™, Portagreen™ 1 Power Finder 1 Prosolv® 1 Rattler™ 1 SeekTech 1 Sure-Grip 1 Tempil Estik™ 1 ToolPak™ 1 ToxiPro® 1 TwistGuard™ 1 Ventis® 1 X-am® 2500 1 XCell® 1 Xcell® 1

Mechanical 10 Demand Flow 8 Large, Electrochemical 8 Standard 8 Non-Contact 5 Non-Wireless 5 Wireless 5 Absolute Digimatic 4 Interchangeable Rod 4 Replacement, Digital 4 Watertight, Crush and Dust Proof, 2-Wheel 4 6-Piece 3 Catalytic 3 Insulated 3 Manual/Automatic 3 Outside, Clamp Nut 3 Small, Catalytic Bead 3 Small, Electrochemical 3 Standalone, 3-Port 3 True RMS, AC/DC 3 Watertight, Crush and Dust Proof, 2-Wheel, Extendable Handle 3 Watertight, Crush and Dust Proof, 4-Wheel, Extendable Handle 3 2-Inlet 2 4-Valve, No-Charging 2 AC, Automatic Selection, True RMS 2 Absolute Coolant Proof 2 Absolute, Standard, Flat Back 2 Automatic 2 Cloud Connected, 3-Port 2 Compact, Small Diameter 2 Contact 2 Digimatic 2 Electronic 2 Extendable 2 Flue Gas 2 Industrial 2 LCD, Electronic 2 Large 2 Lock Screw 2 Lug Back, Absolute, Inch/Metric, LCD Display 2 Manual Shut-off 2 Multi Unit, Cradle 2 Non-Contact, Dual Range 2 Non-Contact, Self Testing 2 Permanent, Twist, Fast-Drying, Vibrant 2 Premium 2 Slide-On 2 Small, Infrared 2 Standalone, Transportable 2 True RMS, Digital 2 Universal Back Plunger 2 Watertight, Crush and Dust Proof, 4-Wheel 2 Watertight, Crush and Dust Proof, Cubed Foam 2 000 Count,Industrial 500 1 1-Inlet, Domestic 1 1-Inlet, Multi-Unit 1 1-Piece 1 1-Pole, Self Test 1 1-Stage, Heavy Duty 1 1-Valve, Charging 1 1-Valve, Portable, No-Charging 1 12-Piece, Analog 1 12-Unit 1 2-Point, Standard, Mechanical 1 3-Wire 1 4-Valve, Charging 1 5 ppm Benzene 1 5-Piece 1 6-Port, Cloud Connected 1 AC 1 AC, Automatic Selection 1 AC, Manual/Automatic Selection 1 AC, True RMS 1 AC/DC, Automatic Selection 1 AC/DC, Manual/Automatic Selection 1 AC/DC, True RMS 1 Absolute AOS Digimatic 1 Adjustable, Lightweight, Portable 1 Adjustable, Non-Contact 1 Advanced 1 Aspirator, Manual 1 Bent 1 Class-2 1 Closed 1 Cloud-Connected 1 Combination 1 Compact 1 Compact, Digital 1 Continuous Reading 1 Coolant Proof 1 Cordless 1 Cordless, Weather Resistant 1 Crushproof, Dustproof, Weather-Resistant 1 DC, Electrical, Quartz 1 Deluxe 1 Deluxe Electronic 1 Digital 1 Digital ABS AOS, Standard 1 Disposable, Personal 1 Double Molded Housing 1 Dual Input, Digital 1 Electrical 1 Electrical Tester 1 English 1 Ethernet 1 Extension Rod 1 FC Insulation 1 Fine Adjustment 1 Fixed Flow 1 Flat Blade, Slim Reach 1 Flat, Metric 1 Flexible 1 Flushable 1 Free Standing 1 Fully Expandable 1 General Purpose 1 Handwheel Adjustment 1 Hardened 1 Heavy Duty 1 High Accuracy 1 High Capacity 1 Horizontal, Basic Set 1 Horizontal, Full Set 1 Horizontal, Pocket, Full Set 1 Ignition 1 Inspection Camera With Wireless Screen Kit 1 Interchangeable Rod, Mechanical 1 Internal 1 LCD Digital, Electronic 1 Large, Zippered, Soft 1 Lightweight 1 Lightweight, Compact 1 Long 1 Long, Single Hinged 1 Magnetic, Un-Calibrated, General Purpose 1 Manual 1 Master 1 Master Short 1 Metric 1 Metric and Unified 1 Motorized 1 Motorized, Slide-On 1 Multi Unit 1 Multi-Function, 6-in-1 1 Multi-Use, Straight, Single Hinged 1 Non-Contact, Digital, Multifunction 1 Non-Contact, Electrical 1 Non-Corrosive Inert, Single Stage 1 Non-Reactive, Recyclable 1 Open Jaw, Automatically 1 Outside, 6-Piece 1 PID 1 Personal voltage detector 1 Phase Sequence 1 Photoelectric 1 Piston 1 Quad 1 Quartz 1 Quick Set 1 Quick-Disconnect 1 Ratchet Stop, Outside 1 Rectangular, Free Standing 1 Remote Display, True RMS, Digital 1 Replacement, Filtered 1 Replacement, Unfiltered 1 Resistance 1 Rugged Design 1 Screw On 1 Short 1 Single 1 Single Gas, THC 1 Single-Unit, Truck-Mount, Hardwired 1 Small 1 Small Hole, 4-Piece 1 Standard Rod and Swivel Style 1 Step Cut 1 Straight 1 Straight, Air Line 1 Tone Generator Tracing Probe 1 True RMS 1 True RMS, Industrial 1 Type D 1 Unified 1 Universal 1 Water Stop 1 Waterproof, Air Tight 1 Weather-Resistant Graduations 1 XXS 1 Zippered, Soft 1

125 °F 3 200 °F 3 275 °F 3 325 °F 3 375 °F 3 425 °F 3 450 °F 3 475 °F 3 500 °F 3 550 °F 3 650 °F 3 -20 to 60 °C 2 -30 to 50 °C 2 100 °F 2 1022 °F 2 109 °F 2 1150 °F 2 119 °F 2 1200 °F 2 1250 °F 2 131 °F 2 1450 °F 2 1500 °F 2 1550 °F 2 1600 °F 2 163 °F 2 1650 °F 2 1700 °F 2 1800 °F 2 188 °F 2 1900 °F 2 194 °F 2 1950 °F 2 2000 °F 2 206 °F 2 213 °F 2 219 °F 2 256 °F 2 300 °F 2 313 °F 2 338 °F 2 350 °F 2 363 °F 2 400 °F 2 413 °F 2 525 °F 2 575 °F 2 700 °F 2 800 °F 2 950 °F 2 -20 to 50 °C 1 -210 to 1200 °C (J-Type), -200 to 1372 °C (K-Type), -250 to 400 °C (T-Type), -150 to 1000 °C (E-Type), -200 to 1300 °C (N-Type), 0 to 1767 °C (R and S-Type) 1 -30 to 55 °C 1 -4 to 131 °F 1 -40 to 60 deg C 1 0 - 110 °F 1 0 - 50 °C 1 1000 °F 1 104 °F 1 1040 °F 1 1050 °F 1 1100 °F 1 1112 °F 1 113 °F 1 1157 °F 1 122 °F 1 125 - 800 °F 1 1292 °F 1 1300 °F 1 1350 °F 1 138 °F 1 140 °F 1 1400 °F 1 1425 °F 1 1480 °F 1 158 °F 1 167 °F 1 169 °F 1 1750 °F 1 176 °F 1 182 °F 1 185 °F 1 1850 °F 1 203 °F 1 2050 °F 1 2100 °F 1 212 °F 1 2150 °F 1 2200 °F 1 230 °F 1 239 °F 1 248 °F 1 257 °F 1 263 °F 1 266 °F 1 269 °F 1 284 °F 1 288 °F 1 294 °F 1 302 °F 1 306 °F 1 311 °F 1 32 - 104 °F 1 320 °F 1 329 °F 1 331 °F 1 344 °F 1 347 °F 1 356 °F 1 374 °F 1 383 °F 1 388 °F 1 392 °F 1 410 °F 1 419 °F 1 428 °F 1 437 °F 1 438 °F 1 446 °F 1 455 °F 1 463 °F 1 482 °F 1 488 °F 1 518 °F 1 536 °F 1 554 °F 1 572 °F 1 600 °F 1 608 °F 1 625 °F 1 662 °F 1 750 °F 1 752 °F 1 850 °F 1 860 °F 1 900 °F 1 932 °F 1

0.1% (O2), 1 ppm (CO), 1 ppm (H2S), 1% (LEL) 12 1% LEL 5 1 ppm (CO), 0.1 ppm (H2S) 4 0.01 ppm 3 0.01% 3 0.1 A (AC/DC), 0.1 mV (DC), 0.1 - 10 O, 0.1 - 1 µF, 0.1 Hz 3 1% (LEL), 0.1 ppm (H2S), 0.1 ppm (SO2), 0.1% (O2) 2 1% (LEL), 0.1% (O2), 0.1 ppm (SO2), 0.1 ppm (H2S) 2 1% (LEL), 0.1% (O2), 1 ppm (CO), 0.1 ppm N(O2) 2 0.02 ppm 1 0.1 - 1 VAC/VDC, 0.1 A (AC/DC), 0.1 - 10 O, 0.1 Hz 1 0.1 VAC/VDC, 0.1 A (AC), 0.1 - 1 O, 0.1 - 1 µF 1 0.1 m/s 1 0.1 mV (AC), 10 µV (DC), 0.1 µA (AC), 0.01 µA (DC), 0.1 O, 0.01 nF, 0.01 Hz 1 0.1 mV (AC/DC), 0.001 - 0.1 VAC/VDC, 0.1 V (Auto), 1 O (Continuity), 0.1 O - 0.001 MO 1 0.1 mV (AC/DC), 0.01 mA (AC/DC), 0.1 O - 50 MO, 1 nF - 10000 µF, 0.01 Hz - 100 kHz 1 0.1 mV - 1 V (AC/DC), 0.01 - 0.1 mA (AC/DC), 0.1 Ohm - 0.01 MOhm, 1 nF - 1 µF, 0.01 Hz - 0.01 kHz 1 0.1 °C, 1 °C 1 0.1% (O2), 1 ppm (CO) 1 0.1% Volume Increments Oxygen, 1% LEL Increments Combustible, 1 ppm Increments Hydrogen Sulphide, 1 ppm Increments Carbon Monoxide 1 0.5 ppm 1 1 nF, 0.01 Hz 1 1% (CH4), 1% (LEL), 0.1% (O2), 1 ppm (CO), 0.1 ppm (SO2) 1 1% (LEL), 0.1% (O2) 1 1% (LEL), 0.1% (O2), 0.1 ppm (H2S) 1 1% (LEL), 0.1% (O2), 1 ppm (CO) 1 1% (LEL), 0.1% (O2), 1 ppm (CO), 0.01 ppm C(O2) 1 1% (LEL), 0.1% (O2), 1 ppm (CO), 0.1 ppm (H2S), 0.1 ppm (NO2) 1 1% (LEL), 0.1% (O2), 1 ppm (CO), 1 ppm (H2S), 1 ppm (SO2) 1 1% Vol 1 O2 (0.1% vol. Increments), LEL (1% LEL Increments), H2S (1 ppm Increments), CO (1 ppm Increments) 1

HCN 4 Methane 3 Propane 3 CH4, CO, O2, H2S, HCN 2 CO, H2S, CH4 2 Carbon Monoxide, Methane, Oxygen, Hydrogen Sulfide, Sulfur Dioxide, Nitrogen 2 Chlorine 2 Isobutylene 2 LEL Combustibles Gas 2 Nitrogen 2 Oxygen 2 Sulfur Dioxide (SO2) 2 10 ppm Sulfur Dioxide 1 100 ppm Carbon Monoxide 1 100 ppm Hydrogen 1 25 ppm Ammonia 1 5 ppm Sulfur Dioxide 1 50 ppm Carbon Monoxide 1 500 ppm Hydrogen 1 60 ppm Carbon Monoxide, 20 ppm Hydrogen Sulfide 1 Ammonia 1 Ammonia, N2 1 Balance Nitrogen 1 Benzene 1 Butane 1 CH4, CO, H2S, HCN, O2 1 CH4, CO, H2S, O2 1 CH4, O2, CO, H2S, SO2 1 CO, H2S, CO2, CH4 1 CO, NO2, O2, Methane 1 CO2, N2 1 Carbon Monoxide, Hydrogen Sulfide, Oxygen, Pentane and Balance Nitrogen 1 Carbon Monoxide, Methane, Oxygen, Hydrogen Sulfide, Balance Nitrogen 1 Carbon Monoxide, Oxygen, Pentane and Balance Nitrogen 1 Chlorine Dioxide 1 Combustible, O2, Toxic 1 Ethylene Oxide 1 H2 1 H2S, CO, CH4, O2 1 Hydrogen Chloride 1 Hydrogen Sulfide, Carbon Monoxide, Methane, Oxygen 1 Hydrogen and Balance Air 1 Isobutylene, N2 1 LEL CH4 1 LEL, O2, H2S, CO 1 LEL, O2, H2S, CO, PID 1 LP 1 NH3 1 Nitrogen Dioxide 1 O2, CO, H2S, C5H12 1 O2, H2S, C5H12 1 O2, H2S, Pentane 1 Oxygen, Isobutylene, CH4, Butane, Propane, Pentane, Hexane, Nitrogen Gas, Zero Air THC 1 Oxygen, Pentane, Carbon Monoxide, Hydrogen Sulfide, Sulfur Dioxide, Nitrogen 1 PH3 1 Pentane 1 Phosphine 1 SO2, N2 1 Zero Air 1

0.001 - 19.49% Oxygen, 0.1 - 0.75% Pentane, 100 ppm 0.005 - 0.09% Carbon Monoxide, 25 ppm 0.001 - 0.025% Hydrogen Sulfide, 5 ppm 0.0001 - 0.05% Sulfur Dioxide in Balance Nitrogen 1 0.03% 300 ppm Carbon Monoxide, 1.45% 1000 ppm Methane, 15% Oxygen, 0.001% 10 ppm Hydrogen Sulfide, Balance Nitrogen 1 0.6% Propane 1 0.75% Pentane, Balance Air 1 1 ppm 0.00001 - 0.0499% Phosphine, 99.9501 - 99.99999% Nitrogen 1 1.45% CH4, 15% O2, 60% CO, 20% H2S, 10% SO2 1 10 ppm 0.0001 - 0.02% Hydrogen Chloride, 99.98 - 99.9999% Nitrogen 1 10 ppm C4H10, N2 1 10 ppm Hydrogen Cyanide 1 10 ppm Sulfur Dioxide 1 100 ppm C4H8 1 100 ppm CO, 18% O2 and 25% LEL Pentane 1 100 ppm CO, 2.5% Methane (50% LEL) and 18% O2 1 100 ppm Carbon Monoxide, Balance Nitrogen 1 100 ppm Carbon monoxide, 5 ppm Nitrogen Dioxide, 18% Oxygen, 2.5% Methane 1 100 ppm H2S 1 100 ppm Hydrogen Cyanide 1 100 ppm, Air Balance 1 1000 ppm CO2, N2 1 125 ppm 0.0001 - 0.05% Hydrogen Sulfide, 99.95 - 99.9999% Nitrogen 1 15% Oxygen, 300 ppm Carbon Monoxide, 35 ppm Hydrogen Sulfide, 1.3% Methane 1 15% Oxygen, 60 ppm Carbon Monoxide, 20 ppm Hydrogen Sulfide, 2.5% Carbon Dioxide, 1.45% Methane 1 15% Oxygen, 60 ppm Carbon Monoxide, 20 ppm Hydrogen Sulfide, 2.5% Methane 1 2.5% CH4, 20.9% O2, 25 ppm H2S, 100 ppm CO, N2 Balance 1 2.5% Methane 1 20 ppm Carbon Monoxide 1 20.9% O2 1 20.9% Oxygen, Nitrogen Balance 1 200 ppm CO, 25 ppm H2S, 25% LEL Pentane and 18% O2 1 25 ppm Ammonia, N2 Balance 1 25 ppm H2S Balance Air 1 25 ppm H2S, 100 ppm CO, 1.25% CH4 1 25 ppm H2S, 18% O2, 25% LEL Pentane 1 25 ppm Hydrogen Sulfide 1 25 ppm Hydrogen Sulfide, 100 ppm Carbon Monoxide, 2.5% Methane, 18% Oxygen, N2 Balance 1 25 ppm Hydrogen Sulfide, 100 ppm Carbon Monoxide, Nitrogen, 3500 PPM Pentane (25% LEL), 18% Oxygen 1 25 ppm NO2 1 25 ppm SO2, N2 Balance 1 25% LEL Propane 1 300 ppm Carbon Monoxide 1 35 ppm SO2/N2 1 40 ppm Hydrogen Sulfide, N2 Balance 1 5 ppm Benzene, Balance Air 1 50 ppm 0.001 - 0.0999% Carbon Monoxide, 76.4001 - 80.499% Nitrogen, 19.5 - 23.5% Oxygen 1 50 ppm Ammonia 1 50 ppm Carbon Monoxide 1 50 ppm H2S 1 50% LEL CH4, 100 ppm CO, 25 ppm H2S, 17% O2 1 50% LEL Hydrogen 1 72.975 - 99.9965% Nitrogen, 0.0015 - 23.5% Oxygen, 0.0005 - 2.5% Methane, 0.0005 - 1% Carbon Monoxide, 0.001 - 0.025% Hydrogen Sulfide 1 74.7 - 79.099% Nitrogen, 20.9% Oxygen, 0.0001 - 4.4% Methane 1 75.75 - 80.4% Nitrogen, 19.5 - 23.5% Oxygen, 0.1 - 0.75% n-Pentane 1 76.4001 - 80.499% Nitrogen, 19.5 - 23.5% Oxygen, 0.001 - 0.0999% Carbon Monoxide 1 80.25 - 99.9% Nitrogen, 0 - 19% Oxygen, 0.1 - 0.75% Pentane 1 99.999% Methane 1 <= 21.5% Oxygen, <= 2.5% Methane, Balance Nitrogen 1 > 99.99% Nitrogen 1 Bump Gas CH4 50% LEL Air 1 Carbon Dioxide, Hydrogen Sulfide, Nitrogen 1 Hydrogen Sulfide 10 ppm, Carbon Monoxide 50 ppm, Methane 2.5% (50% LEL), Oxygen 18%, Nitrogen Balance 1 Propane, C3H8 50%LEL 6D Air 1

0 - 100% (LEL), 0 - 30% (O2), 0 - 500 ppm (H2S), 0 - 500 ppm (SO2) 2 0 - 100% (CH4), 0 - 25% (O2), 0 - 1000 ppm (CO), 0 - 100 ppm (H2S) 1 0 - 100% (LEL), 0 - 30% (O2) 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 1000 ppm (CO), 0 - 200 ppm (H2S) 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 1500 ppm (CO) 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 1500 ppm (CO), 0 - 1 ppm (CO)2 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 2000 ppm (CO), 0 - 500 ppm (H2S), 0 - 150 ppm (NO2) 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 500 ppm (CO), 0 - 100 ppm (H2S) 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 500 ppm (H2S) 1 0 - 100% (LEL), 0 - 30% (O2), 0 - 999 ppm (CO), 0 - 500 ppm (H2S), 0 - 150 ppm (SO2) 1 0 - 30% (O2), 0 - 100% (LEL), 0 - 5% v/v, 0 - 100 ppm (H2S), 0 - 500 ppm (CO) 1 0 - 30% (O2), 0 - 100% and 0 - 5% (LEL), 0 - 100 ppm (H2S), 0 - 500 ppm (CO) 1 0 - 30% (O2), 0 - 200 ppm (H2S), 0 - 150 ppm (SO2), 0 - 100% (LEL) 1 0 - 30% (O2), 0 - 500 ppm (CO) 1 1 - 100% (LEL), 0 - 30% (O2), 0 - 1999 ppm and 0 - 200 ppm (H2S) 1 1 - 100% (LEL), 0 - 30% (O2), 0 - 20 ppm (SO2), 0 - 1999 ppm and 0 - 200 ppm (H2S) 1

Orange/Black 1 Phosphorescent 1 Purple 1

3-1/2 in dia x 14-1/2 in H 2 3-1/2 in dia x 15 in H 2 3-1/4 in dia x 14 in H 2 34 l, 58 l, 103 l 2 13-3/4 x 3 in 1 13-7/8 x 3-1/4 in 1 2-3/4 in dia x 10-3/4 in L 1 2-3/4 in dia x 11-1/2 in H 1 2-7/8 in dia x 11-1/2 in H 1 2-7/8 in dia x 11-1/2 in L 1 2-7/8 in dia x 12 in L 1 2-9/10 in dia x 11 in H 1 2.9 in dia x 10-3/4 in H 1 3 in dia x 13-1/4 in H 1 3 x 10-3/4 in 1 3 x 13-3/4 in 1 34, 58, 103 l 1 4-1/2 in dia x 12 in H 1

Hydrogen Cyanide 2 Benzene 1 Carbon Monoxide, Hydrogen Sulphide (H2S), Oxygen (O2) 1