Test Instruments

DRAEGER 21 STANLEY 14 RIDGE TOOL COMPANY 13 CONCEPT CONTROLS 10 PRECISION BRAND 10 STARRET PRECISION 10 MILWAUKEE ELECTRIC TOOL 9 PELICAN CANADA ULC 9 3M 7 TECHNIWELD 7 BUMPER TO BUMPER 4 PRAXAIR 4 LENCO WELDING 3 PRAXAIR DISTRIBUTION INC 3 TYCO 3 BW TECHNOLOGIES LP 2 DRAEGER CANADA LTD. 2 EECOL ELECTRIC 2 H. PAULIN 2 ITM INSTRUMENTS 2 JORDAIR COMPRESSORS 2 L.S. STARRETT CO OF CANADA LTD 2 SOWA TOOL & MACHINE 2 STEWART WARNER 2 TRINITEC 2 AIR LIQUIDE 1 AVIALL SERVICES 1 BRADY 1 CRC EVANS 1 CROSBY 1 ECLIPSE TOOLS NORTH AMERICA 1 ELECTRONIC CONNECTIONS 1 G2S TOBEQ INC. 1 GESCAN 1 GRAY TOOLS 1 GREAT PLAINS INDUSTRIES 1 JUSTRITE 1 KAR INDUSTRIAL 1 MILLER ELECTRIC MFG LLC 1 NATIONAL ENERGY EQUIPMENT 1 NORTH SAFETY 1 SNAP-ON 1 WAREHOUSE SERVICES 1

Drager 20 ALTAIR® 2X Gas Detector 13 Calibration Testing Gas 13 GALAXY® GX2 Automated Test System 13 Jet Equipment & Tools 11 L.S. Starrett 11 0 10 Precision Brand 10 JET 9 Milwaukee 9 Proto 9 RAE Systems 9 Williams 9 Ridgid Tool 8 Praxair 7 3M 5 Mahle Clevite 4 Draeger 3 RIDGID 3 ALTAIR® 5X Multigas Detector 2 ALTAIR® Pump Probe 2 CDI Torque Products 2 G.A.L. Gage 2 ITC 2 Jet 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 Eagle Industrial 1 Edwards-Signals 1 Emerson 1 Gasco 1 Gray Tools 1 Great Plains Industries 1 Jackson Safety 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

Single Gas Monitor 2 Temperature Indicating Stick 205 Gas Monitor Replacement Sensor 37 Protector Case with Foam 16 Clamp Meter 14 Feeler Gauge Set 14 Detection Tube 13 Case with Foam and Lock 10 Feeler Gauge Blade 10 Infrared Thermometer 10 Multimeter 9 Dial Indicator 8 Digital Caliper 8 Micrometer Setting Standard 8 Voltage Tester 8 Gas Regulator with Pressure Switch 7 Outside Micrometer with Ratchet Stop 7 Automated Test System 6 Gas Regulator 6 Battery Charger 5 Dial Indicator with Back Lug 5 Docking Station 5 Gas Monitor Docking Station 5 Gas Monitor Test Station 5 Micro Case 5 Protector Case 5 Protector Long Case with Foam and Wheel 5 Replacement Sensor 5 Test Lead Set 5 Vernier Caliper 5 Calibration Kit 4 Carrying Case 4 Depth Micrometer 4 Dial Caliper 4 Digimatic Indicator 4 Micrometer Set 4 Outside Micrometer 4 Plastigauge 4 Probe with Filter 4 Protector Case with Foam and Wheel 4 Sampling Line 4 Screw Pitch Gage 4 Caliper 3 Case with Lid Foam 3 Dial Test Indicator 3 Micrometer 3 Paint Marker 3 Probe Tubing Kit 3 Protector EMS Case with Organizer and Divider 3 Sampling Pump 3 Sampling Pump Module 3 Sensor Kit 3 Test Lead 3 Alarm Amplifier 2 Alligator Clip 2 Calibration Gas Kit 2 Calibration Station 2 Case with Foam 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 Front Housing with Integrated Dust Filter 2 High Pressure Regulator 2 Hour Meter 2 Housing 2 Insert 2 Inside Micrometer Set 2 Magnetic Base with Fine Adjustment 2 Magnetic Stand 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 Vehicle Battery Charger 2 Absolute Dial Depth Gage 1 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 North American Plug 1 Battery Cover 1 Battery Latch 1 Belt Clip 1 Body Harness Kit 1 Bore Gauge 1 Buried Marker 1 Cable 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 Tracing Kit 1 Combustible Gas Detector 1 Cube Case with Foam 1 Cylinder Holder 1 DMM Case Kit 1 Datalink Module 1 Demand Regulator 1 Detector Chip 1 Dial Indicator with Lug 1 Dial Thickness Gage 1 Dial indicator 1 Diffusion Cap Assembly 1 Digital Camera Kit 1 Digital Height Gauge 1 Digital Multimeter 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 Fuel Meter 1 GFI Circuit Tester 1 Gage Set 1 Gas Detector Docking Module 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 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 Base 1 Magnetic Dial Indicator 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

T40 Rattler™ 1 Tempilstik® 123 Thermomelt® 89 BW™ Flex 12 BW™ Flex-i 12 GasBadge® Pro 12 iBrid™ MX6 8 MicroDock II 7 DSX™ 6 SureGrip™ 6 Protector Case™ 5 GasAlert Extreme 4 SafeCore™ 4 ALTAIR® 4X 3 ALTAIR® 5X 3 Portagas™ 3 ALTAIR® Pro 2 Absolute® 2 AlarmAmp™ 2 GasAlertMicro 5 2 IntelliDoX 2 M-SPECTOR 360™ 2 M12™, Temp-Gun™ 2 Quik Stik® 2 Radius™ BZ1 2 STM 2 Tango® 2 Temp-Gun™ 2 V-Cal™ 2 ALTAIR® 2X 1 ALTAIR®/Xcell® 1 Alarm Muffler 1 Analytics™ 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 Fluke 1 Gas Miser® 1 GasAlertMicroClip XL 1 GasAlertMicroClip XT 1 GasBadge® 1 HDE, V-Watch® 1 Hard Point™ 1 JetEye 1 Micro IR-200 1 Milwaukee® 1 Minigrabber® 1 Omni Marker™ 1 Pac® 6000 1 Portagas™, Portagreen™ 1 Power Finder 1 ProcessMeter™ 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

Demand Flow 8 Large, Electrochemical 8 Dockable 7 Compact 5 Non-Wireless 5 Wireless 5 2-Inlet 4 Absolute Digimatic 4 Interchangeable Rod 4 Non-Contact 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 4-Valve, No-Charging 2 AC, Automatic Selection, True RMS 2 Absolute Coolant Proof 2 Absolute, Standard, Flat Back 2 Cloud Connected, 3-Port 2 Compact, Small Diameter 2 Contact 2 Continuous Reading 2 Digimatic 2 Digital ABS AOS, Standard 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, Self Testing 2 Permanent, Twist, Fast-Drying, Vibrant 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-Piece 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 Aspirator, Manual 1 Automatic 1 Bent 1 Class-2 1 Closed 1 Cloud-Connected 1 Combination 1 Compact, Digital 1 Coolant Proof 1 Cordless 1 Crushproof, Dustproof, Weather-Resistant 1 DC, Electrical, Quartz 1 Deluxe 1 Deluxe Electronic 1 Digital 1 Disposable, Personal 1 Double Molded Housing 1 Dual Input, Digital 1 Electrical 1 Electrical Tester 1 Electronic 1 English 1 Ethernet 1 Extension Rod 1 FC Insulation 1 Fine Adjustment 1 Firm Joint 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 Face 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 Nutating Disc, Modular, Mechanical 1 Open Jaw, Automatically 1 Outside, 6-Piece 1 PID 1 Personal voltage detector 1 Phase Sequence 1 Photoelectric 1 Piston 1 Premium 1 Quad 1 Quartz 1 Quick Set 1 Quick-Disconnect 1 Ratchet Stop, Outside 1 Rectangular 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 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 -40 to 122 °F 2 100 °F 2 1022 °F 2 1050 °F 2 109 °F 2 1100 °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 2 269 °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 104 °F 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 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 1 238 °F 1 239 °F 1 248 °F 1 257 °F 1 263 °F 1 266 °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

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 (SO2) 1 1% (LEL), 0.1% (O2), 1 ppm (CO), 1 ppm (H2S), 1 ppm (SO2) 1 1% (LEL), 0.1% Vol (O2), 5 ppm (CO), 1 ppm (H2S) 1 1% Vol 1 O2 (0.1% vol. Increments), LEL (1% LEL Increments), H2S (1 ppm Increments), CO (1 ppm Increments) 1

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 NH3 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 Cl2 1 Combustible, O2, Toxic 1 H2 1 H2S, CO, CH4, O2 1 Hydrogen Chloride 1 Hydrogen Sulfide, Carbon Monoxide, Methane, Oxygen 1 Hydrogen Sulfide, Sulphur Dioxide and Nitrogen 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 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

0.03% 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 Nitrogen Dioxide 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, 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 ppm H2S and 10 ppm SO2 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 5 ppm Benzene, Balance Air 1 5% Carbon Dioxide 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

One Black, One Red 1 Orange/Black 1 Phosphorescent 1

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 - 10000 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 (SO2) 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

Nitrogen Dioxide 2 Benzene 1 Carbon Monoxide, Hydrogen Sulphide (H2S), Oxygen (O2) 1 Chlorine 1 Chlorine Dioxide 1 Hydrogen 1 Mercaptan 1 Phosphine 1 Urethane 1

3-1/2 in dia x 13-1/2 in H 2 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 13-7/8 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