Test Instruments

PELICAN 107 SNAP-ON INDUSTRIAL BRANDS 78 DRAEGER 22 STANLEY 15 RIDGE TOOL COMPANY 13 CONCEPT CONTROLS 10 PRECISION BRAND 10 STARRET PRECISION 9 3M 7 TECHNIWELD 7 BUMPER TO BUMPER 4 NORTH SAFETY 4 LENCO WELDING 3 TYCO 3 BRADY 2 EECOL ELECTRIC 2 H. PAULIN 2 ITM INSTRUMENTS 2 JOHNSON LEVEL 2 JORDAIR COMPRESSORS 2 PELICAN CANADA ULC 2 SOWA TOOL & MACHINE 2 STEWART WARNER 2 SUMNER 2 TITAN SUPPLY 2 TRINITEC 2 AIR LIQUIDE 1 AVIALL SERVICES 1 CRC EVANS 1 CROSBY 1 ECLIPSE TOOLS NORTH AMERICA 1 ELECTRONIC CONNECTIONS 1 GESCAN 1 GRAY TOOLS 1 GREAT PLAINS INDUSTRIES 1 INGERSOLL RAND 1 JUSTRITE 1 KAR INDUSTRIAL 1 KLEIN TOOLS 1 NATIONAL ENERGY EQUIPMENT 1 SNAP-ON 1 WALTER SURFACE TECHNOLOGIES 1 WAREHOUSE SERVICES 1

Markal 93 Pelican 65 CDI 48 Drager 18 JET 17 Calibration Testing Gas 14 Williams 14 ALTAIR® 2X Gas Detector 13 GALAXY® GX2 Automated Test System 13 0 10 Precision Brand 10 RAE Systems 9 L.S. Starrett 8 Proto 8 Ridgid Tool 8 3M 5 Mahle Clevite 4 CDI Torque Products 3 Draeger 3 ALTAIR® 5X Multigas Detector 2 ALTAIR® Pump Probe 2 G.A.L. Gage 2 ITC 2 Johnson 2 Jordair Compressors 2 Mueller Electric 2 Powerweld 2 REED Instruments 2 Sowa 2 Stewart Warner 2 Sumner 2 Techniweld 2 Trinitec 2 ALTAIR® 4XR Multigas Detector 1 ALTAIR® Single-Gas Detector 1 Aviall Services 1 Brady® 1 DEWALT 1 DeWalt 1 Eagle Industrial 1 Edwards-Signals 1 Emerson 1 Gray Tools 1 Great Plains Industries 1 Justrite 1 Kar Industrial 1 Lang Tools 1 MSA Link Pro is now Safety io Grid Fleet Manager 1 Magnaflux 1 Mathey Dearman 1 Maxweld 1 Pomona Electronics 1 SPC 1 Snap-On 1

Electrical Tester with FieldSense Technology 1 Master Test Lead Set 1 Multi-Gas Detector with Pump 1 Temperature Indicating Stick 206 Gas Monitor Replacement Sensor 38 Protector Case with Foam 15 Feeler Gauge Set 13 Multigas Detector with Diffusion 13 Multigas Detector 12 Detection Tube 11 Case with Foam and Lock 10 Feeler Gauge Blade 10 Infrared Thermometer 10 Multimeter 9 Digital Caliper 8 Outside Micrometer with Ratchet Stop 7 Battery Charger 6 Gas Regulator with Pressure Switch 6 Calibration Kit 5 Carrying Case 5 Dial Indicator with Back Lug 5 Docking Station 5 Gas Monitor Docking Station 5 Gas Monitor Test Station 5 Gas Regulator 5 Micro Case 5 Multi Gas Detector 5 Protector Case 5 Protector Long Case with Foam and Wheel 5 Replacement Sensor 5 Vernier Caliper 5 Depth Micrometer 4 Dial Caliper 4 Dial 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 Sensor 4 Caliper 3 Dial Test Indicator 3 Micrometer 3 Paint Marker 3 Probe Tubing Kit 3 Probe with Tubing 3 Protector EMS Case with Organizer and Divider 3 Quad Sensor Screen Filter 3 Ruler 3 Sampling Pump 3 Sensor Kit 3 Smoke Sensor 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 Demand Flow Regulator 2 Digimatic Indicator 2 Docking Module without Charging Cable 2 Extendible Probe 2 Front Housing with Integrated Dust Filter 2 Hour Meter 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 Long Case with Foam 2 Protector Transport Case with Foam and Wheel 2 Replacement Filter 2 Sampling Probe 2 Single Gas Monitor 2 Telescoping Gage 2 Telescoping Gage Set 2 Thermometer 2 Torque Sensor 2 Vehicle Battery Charger 2 Welding Gauge 2 Absolute Dial Depth Gage 1 Activated Carbon Filter 1 Air Quality Monitor 1 Alarm Muffler 1 Alligator Clip Set 1 Barrier Water Oxygen Sensor 1 Base Station 1 Battery Charger with North American Plug 1 Battery Cover 1 Battery Latch 1 Battery Pack 1 Belt Clip 1 Body Harness Kit 1 Bore Gauge 1 Buried Marker 1 Cable Kit 1 Calibration Carrying Case 1 Calibration Gas Regulator 1 Calibration Testing Gas 1 Carbon Mask 1 Case 1 Category 5E Cable 1 Center Gage 1 Circuit Tester with Rubber Wire and Insulated Clip 1 Circuit Tracing Kit 1 Combustible Gas Detector 1 Continuity Tester 1 Cover 1 Cube Case with Foam 1 Cylinder Holder 1 DMM Case Kit 1 Datalink Module 1 Demand Regulator 1 Detector Chip 1 Dial indicator 1 Diffusion Cap Assembly 1 Digital Camera Kit 1 Digital Height Gauge 1 Digital Micrometer 1 Digital Multimeter 1 Display Connector Kit 1 Dual Rod 1 Dust Filter 1 Dust Filter/Water Stop 1 Edge Finder 1 Electronic Cylinder Holder 1 Electronic Theodolite 1 Emergency Response Guidebook 1 Enabler Kit 1 Environmental Meter 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 Fuel Meter 1 GFI Circuit Tester 1 Gage 1 Gage Set 1 Gas Detector Docking Module 1 Gas Detector Pump 1 Gas Lamp Tester 1 Gas Regulator Manifold Kit 1 Gasket 1 Gauge Adapter 1 Hand Tachometer 1 Hardback Case 1 High Pressure Regulator 1 Holder 1 IR Connectivity Kit 1 Indicator 1 Infrared Thermometer Kit 1 Inline Dust Filter 1 Inline Water Stop 1 Insert 1 Inside Micrometer Set 1 Insulation Tester 1 Insulator 1 Interface Adapter 1 Jobbers Drill Gage 1 LCD Assembly 1 LCD Frame Assembly 1 Laser Distance Meter 1 Leak Detector 1 Line Locator 1 Line Locator with Bluetooth® and GPS 1 Link Pro Digital Software Key 1 Luer Fitting 1 Magnetic Back 1 Master Accessory Set 1 Master Feeler Gauge Set 1 Matched Flow Regulator 1 Meter Hanging Kit 1 Micrometer Head with Digit Counter 1 Micrometer with Ratchet Stop 1 Multi-Gas Detector Confined Space Kit 1 Multi-Gas Monitor 1 Multimeter Combination Kit 1 Neck Lanyard with Safety Release 1 Organic Vapour Monitor 1

AC, True RMS 1 AC/DC, True RMS 1 Electrical Tester 1 Flat Blade, Slim Reach 1 Non-Contact, Electrical 1 Premium 1 True RMS 1 Watertight, Crush and Dust Proof 37 Non-Reactive 17 Electrochemical 13 Mechanical 10 Replacement 9 Standard 9 Compact 8 Large, Electrochemical 8 Dockable 7 Demand Flow 6 Non-Wireless 5 Wireless 5 2-Inlet 4 Absolute Digimatic 4 6-Piece 3 Catalytic 3 Interchangeable Rod 3 Manual/Automatic 3 Outside, Clamp Nut 3 Small, Catalytic Bead 3 Small, Electrochemical 3 Standalone, 3-Port 3 Watertight, Crush and Dust Proof, 2-Wheel 3 Watertight, Crush and Dust Proof, 2-Wheel, Extendable Handle 3 Watertight, Crush and Dust Proof, 4-Wheel, Extendable Handle 3 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 LCD, Electronic 2 Large 2 Lock Screw 2 Manual Shut-off 2 Metric 2 Multi Unit, Cradle 2 Non-Slip Grip 2 Permanent, Twist, Fast-Drying, Vibrant 2 Slide-On 2 Small, Infrared 2 Standalone, Transportable 2 True RMS, Digital 2 Watertight, Crush and Dust Proof, 4-Wheel 2 000 Count,Industrial 500 1 1-Inlet, Domestic 1 1-Inlet, Multi-Unit 1 1-Piece 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 2-Unit 1 3-Wire 1 4-Piece 1 4-Valve, Charging 1 5-Piece 1 6-Port, Cloud Connected 1 AC 1 AC, Automatic Selection 1 AC, Manual/Automatic Selection 1 AC/DC, Automatic Selection 1 AC/DC, Manual/Automatic Selection 1 Absolute AOS Digimatic 1 Adjustable, Lightweight, Portable 1 Adjustable, Non-Contact 1 Aspirator, Manual 1 Automatic 1 Bent 1 Case 1 Class-2 1 Closed 1 Cloud-Connected 1 Combination 1 Compact, Digital 1 Compact, Lightweight, Water Resistant 1 Compact, Single Unit 1 Coolant Proof 1 Cordless 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 Electronic 1 English, Quality Control, Welders 1 Ethernet 1 Extension Rod 1 FC Insulation 1 Fine Adjustment 1 Firm Joint 1 Fixed Flow 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 Heavy Duty, Large 1 High Accuracy 1 High Capacity 1 Horizontal, Basic Set 1 Horizontal, Full Set 1 Horizontal, Pocket, Full Set 1 Ignition 1 Imperial 1 Inspection Camera With Wireless Screen Kit 1 Interchangeable Rod, Mechanical 1 Internal 1 LCD Digital, Electronic 1 LEL Explosive 1 Large Face 1 Large, Zippered, Soft 1 Lightweight 1 Lightweight, Compact 1 Long 1 Long Skirt and Nose Cup 1 Long, Single Hinged 1 Magnetic, Un-Calibrated, General Purpose 1 Master 1 Master Short 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-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 Precision, Straight Edge 1 Quad 1 Quartz 1 Quick Set 1 Quick-Disconnect 1 Ratchet Stop, Outside 1 Rechargeable 1 Rectangular 1 Rectangular, Free Standing 1 Remote Display, True RMS, Digital 1 Resistance 1 Rugged Design 1 Screw On 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 Standard Standalone 1 Standard Standalone, Charging 1 Step Cut 1 Straight 1 Straight Edge 1 Straight, Air Line 1 Surface Mount 1 True RMS, Industrial 1 Type D 1 Unified 1 Universal 1 Water Stop 1 Waterproof, Air Tight 1 Watertight, Crush and Dust Proof, Cubed Foam 1

Portagas™, Portagreen™ 1 TwistGuard™ 1 Tempilstik® 123 Thermomelt® 90 GasBadge® Pro 12 iBrid™ MX6 12 GasAlert Extreme 7 MicroDock II 7 DSX™ 6 GasAlertQuattro 4 SafeCore™ 4 ALTAIR® 4X 3 ALTAIR® 5X 3 ALTAIR® Pro 2 Absolute® 2 AlarmAmp™ 2 DualSense®, Tango® 2 GALAXY®, Solaris 2 GasAlertMax XT II 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 Ventis® Pro 5 2 ALTAIR® 2X 1 ALTAIR®/Xcell® 1 Alarm Muffler 1 Analytics™ 1 BMP®71 Label Printer Accessory 1 BlackBox™ 1 Boeing 1 CALGAZ 1 Circuit Seeker 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 JetEye 1 Micro IR-200 1 Minigrabber® 1 Omni Marker™ 1 Pac® 6000 1 Polytron® 7000 1 Power Finder 1 ProcessMeter™ 1 Prosolv® 1 Rattler™ 1 SeekTech 1 Sure-Grip 1 T40 Rattler™ 1 Tempil Estik™ 1 ToolPak™ 1 ToxiPro® 1 Ventis® 1 X-am® 2500 1 XCell® 1 Xcell® 1

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 -22 to 122 °F 2 -30 to 50 °C 2 -40 to 122 °F 2 100 °F 2 1000 °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 2 263 °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 2 950 °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 1 104 °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 1 266 °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 1 800 °F 1 850 °F 1 860 °F 1 900 °F 1 932 °F 1

0.01 ppm 3 0.01% 3 0.1% (O2), 1% (LEL), 1 ppm (H2S), 1 ppm (CO) 2 1% (LEL), 0.1 ppm (H2S), 0.1 ppm (SO2), 0.1% (O2) 2 1% (LEL), 0.1% (O2) 2 1% (LEL), 0.1% (O2), 0.1 ppm (H2S) 2 1% (LEL), 0.1% (O2), 0.1 ppm (SO2), 0.1 ppm (H2S) 2 1% (LEL), 0.1% (O2), 1 ppm (CO) 2 1% (LEL), 0.1% (O2), 1 ppm (CO), 0.1 ppm N(O2) 2 0.001% 1 0.02 ppm 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 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), 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% (LEL), 0.1% Vol (Oxygen), 1 ppm (Carbon Monoxide), 1 ppm (Hydrogen Sulfide), 0.1 ppm (Nitrogen Dioxide) 1 1% LEL or 0.1% Vol 1 1% Vol 1 H2S (1 ppm Increments), CO (1 ppm Increments), O2 (0.1 % v/v Increments), LEL (0.1 % v/v Increments), VOC (1 ppm Increments) 1 O2 (0.1% vol. Increments), LEL (1% LEL Increments), H2S (1 ppm Increments), CO (1 ppm Increments) 1

HCN 3 Methane 3 Propane 3 Ammonia 2 CH4, CO, O2, H2S, HCN 2 CO2 2 Carbon Monoxide, Methane, Oxygen, Hydrogen Sulfide, Sulfur Dioxide, Nitrogen 2 NH3 2 Nitrogen 2 10 ppm Sulfur Dioxide 1 100 ppm Carbon Monoxide 1 100 ppm Hydrogen 1 25 ppm Ammonia 1 5 ppm Sulfur Dioxide 1 5% CO2 1 50 ppm Carbon Monoxide 1 500 ppm Hydrogen 1 60 ppm Carbon Monoxide, 20 ppm Hydrogen Sulfide 1 Ammonia, N2 1 Balance Nitrogen 1 Butane 1 CH4, CO, H2S, HCN, 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 Cl2 1 Combustible, O2, Toxic 1 H2 1 H2S, CO, CH4, O2 1 Hydrogen Chloride 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 O3 1 Oxygen 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 Sulfur Dioxide (SO2) 1 Zero Air 1

0.0005 - 50% Carbon Dioxide, 5.6 - 8% Butane, Balance Nitrogen 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 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 Cl2 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 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, Nitrogen, 3500 PPM Pentane (25% LEL), 18% Oxygen 1 25 ppm NH3 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% 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% 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 Propane, C3H8 50%LEL 6D Air 1

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

6 V 6 120 VAC 4 100 VAC 2 110 - 240 VAC 2 12 V 2 1 kV 1 10 - 50 VDC 1 10 - 80 VDC 1 100 - 240 VAC, 12 V 1 12 - 24 VDC 1 16.5 - 30 VDC 1 19 - 1000 VAC, 5 - 1000 VDC 1 20 - 90 VAC 1 24 VDC 1 2400 VAC 1 30 VAC/60 VDC 1 300 V 1 400 mV - 1000 VAC/VDC 1 5 - 1000 VAC 1 6 - 12 V 1 6/12 VDC 1 600 VAC/VDC 1

Carbon Monoxide, Hydrogen Sulphide (H2S), Oxygen (O2) 1 Chlorine 1 Hydrochloric Acid 1 Hydrogen 1 Hydrogen Sulphide 1 Mercaptan 1 Ozone 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 3-1/4 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 2-7/8 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 3 in dia x 13-1/4 in H 1 3 x 10-3/4 in 1 3 x 13-3/4 in 1 3-1/2 in dia x 15 in H 1 34, 58, 103 l 1 4-1/2 in dia x 12 in H 1

Lithium-ion Battery 1 Rechargeable Extended Range Lithium-Ion Battery 1 Replaceable Lithium Manganese Dioxide Battery 1

0 - 100% (LEL), 0 - 3% Vol (O2), 0 - 1999 ppm (CO), 0 - 200 ppm (H2S) 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), 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 - 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 - 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 - 500 ppm (CO) 1 0 - 500 ppm (H2S), 0 - 999 ppm (CO), 0 - 30% (O2) v/v, LEL to 100% LEL/0 to 5.0% v/v, VOC 0 - 1000 ppm 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