ADAPTORS, namely, ELECTRODE ADAPTORS; ALARMS, namely, ALARM MODULES; AUDIBLE ALARMS; AMMETERS, namely, DC AMMETERS; AMPLIFIERS, namely, THERMOCOUPLE AMPLIFIERS; ANALYZERS, namely, ION ANALYZERS; LOOP ANALYZERS; WATER ANALYZERS; ANEMOMETERS, namely, ANEMOMETERS, HYDRO/THERMAL/ANEMOMETERS; BAROMETERS, namely, BAROMETERS, HAND HELD BAROMETERS; TEMPERATURE CONTROLLING BATHS, namely, CIRCULATING BATHS, CONSTANT TEMPERATURE BATHS, FLUIDIZED SAND BATHS, HEATED BATHS, REFRIGERATED BATHS; BATTERY CHARGERS; CIRCUIT BOARDS, namely, ANALOG I/O BOARDS, DIGITAL I/O BOARDS, PLUG IN BOARDS, ADAPTER BOARDS, RELAY BOARDS; CABLE, namely, CONSTANT WATTAGE HEAT TRACE CABLE, MINERAL INSULATED HEAT TRACE CABLE, SELF REGULATING HEAT TRACE CABLE; CALIBRATORS, namely, AUTOMATIC PH LOOP CALIBRATORS, BENCHTOP CALIBRATORS, BLOCK CALIBRATORS, [ CONDUCTIVITY CALIBRATORS, ] FREQUENCY CALIBRATORS, HANDHELD CALIBRATORS, LOOP CALIBRATORS, MULTI-FUNCTION CALIBRATORS, PH CALIBRATORS, PROCESS CALIBRATORS, RTD CALIBRATORS, THERMOCOUPLE CALIBRATORS; CAPSULES, namely, PH BUFFER CAPSULES; CARDS, namely, PLUG-IN CARDS; CELLS, namely, CONDUCTIVITY CELLS, CONDUCTIVITY/RESISTIVITY CELLS, LOAD CELLS; HIGH TEMPERATURE CEMENTS; CHECKERS, namely, HANDHELD LEAK CHECKERS; CLAMPS, namely, TUBE CLAMPS; COMPUTERS, namely, BTU/FLOW COMPUTERS, MASS FLOW/ BTU COMPUTER, COMPUTER INTERFACES, COMPUTER SOFTWARE, NAMELY, DATA ACQUISITION SOFTWARE FOR ACQUIRING, DISPLAYING AND ANALYZING SCIENTIFIC AND ENGINEERING DATA, GRAPHIC PRESENTATION SOFTWARE FOR CREATING SPREADSHEETS TO PROCESS DATA, GENERATING GRAPHS AND CHARTS, PRINTING REPORTS, PROVIDING GRAPHICAL PRESENTATIONS OF CAPTURED DATA, FOR USE IN THE FIELDS OF SCIENCE AND ENGINEERING; CONDITIONERS, namely, SIGNAL CONDITIONERS; CONNECTORS, namely, CONTRACTORS, namely, MAGNETIC CONTRACTORS; CRAYONS, namely, TEMPERATURE INDICATING CRAYONS; CONTROLLERS, namely, ANALOG CONTROLLERS, AUTOTUNE CONTROLLERS, BATCH CONTROLLERS, BENCHTOP CONTROLLERS, CONDUCTIVITY CONTROLLERS, CONDUCTIVITY/ RESISTIVITY CONTROLLERS, CRYOGENIC CONTROLLERS, DEVIATION CONTROLLERS, DIGITAL CONTROLLERS, DUAL INPUT CONTROLLERS, IEEE-488 CONTROLLERS, INDICATING CONTROLLERS, INDUSTRIAL PH CONTROLLERS, LEVEL AND TEMPERATURE CONTROLLERS, LIMIT CONTROLLERS, MICROPROCESSOR BASED CONDUCTIVITY/ RESISTIVITY CONTROLLERS, MICROPROCESSOR BASED PH CONTROLLERS, MICROPROCESSOR BASED PH/ORP CONTROLLERS, MULTILOOP CONTROLLERS, NON-INDICATING CONTROLLERS, PANEL MOUNT CONTROLLERS, PH CONTROLLERS, PH/ORP CONTROLLERS, PH PUMP CONTROLLERS, POWER CONTROLLERS, PROCESS CONTROLLERS, PROFILE CONTROLLERS, PROGRAMMABLE LOGIC CONTROLLERS, PULSE FREQUENCY PH CONTROLLERS, RAMP AND SOAK CONTROLLERS, RESISTIVITY CONTROLLERS, SCR CONTROLLERS, SCR POWER CONTROLLERS, SETPOINT CONTROLLERS, SEQUENCING CONTROLLERS, TEMPERATURE CONTROLLERS; CONVERTERS, namely, A/ D CONVERTERS, D/A CONVERTERS, CONVERTERS; DATALOGGERS, namely, BATTERY POWERED, HANDHELD DATALOGGERS, INTELLIGENT DATALOGGERS, PORTABLE DATALOGGERS, PROGRAMMABLE DATALOGGERS, TEMPERATURE DATALOGGERS; DETECTORS, namely, LEAK DETECTORS; DIALERS, namely, AUTODIALERS, TELEPHONE DIALERS; ELECTRODES, namely, COMBINATION PH ELECTRODES, CONDUCTIVITY ELECTRODES, EPOXY BODIED COMBINATION PH ELECTRODES, GLASS BODIED PH ELECTRODES, IN-LINE PH/ORP ELECTRODES, INDUSTRIAL PH/ORP ELECTRODES, ION SELECTIVE ELECTRODES, ISE ELECTRODES, LABORATORY PH/ORP ELECTRODES, MEASURING ELECTRODES, ORP ELECTRODES, OXIDATION-REDUCTION POTENTIAL ELECTRODES, PH ELECTRODES, PREAMPLIFIED PH ELECTRODES, REFERENCE ELECTRODES, RETRACTABLE PH/ORP ELECTRODES, SUBMERSIBLE PH/ORP ELECTRODES, POWER CONTROL ELEMENTS LABORATORY FEEDTHROUGHS, namely, HERMETIC FEEDTHROUGHS, VACUUM FEEDTHROUGHS, LABORATORY FEEDTHROUGHS, namely, COMPRESSION FITTINGS, TUBE FITTINGS; FLOWMETERS, namely, IN-LINE FLOW METERS, MAGNETIC FLOWMETERS, MASS FLOWMETERS/CONTROLLERS, ULTRASONIC FLOWMETERS; GAGES, namely, DIAL GAGES, HANDHELD FORCE GAGES, STRAIN GAGES; HYGROMETERS, namely, DIGITAL THERMAL HYGROMETERS; INDICATORS, namely, ANALOG INDICATORS, ANALOG INPUT INDICATORS, ANALOG/ FREQUENCY INPUT INDICATORS, FLOW/TOTAL/BATCH CONTROL INDICATORS, FREQUENCY INPUT INDICATORS, HUMIDITY AND RECORDER INDICATORS, LOOP INDICATORS, LOOP POWERED INDICATORS, MINI INDICATORS, MODULAR INDICATORS/CONTROLLERS/TRANSMITTERS, MOTOR ROTATION INDICATORS, PHASE SEQUENCE INDICATORS, PH INDICATORS, RTD INDICATORS, TEMPERATURE INDICATORS, THERMISTOR INDICATORS; INTERFACES; ISOLATORS, namely, LOOP ISOLATORS, LOOP POWERED ISOLATORS; JUNCTION BOXES, namely, LOAD CELL SUMMING JUNCTION BOXES; LABELS, namely, LIQUID CRYSTAL LABELS, TEMPERATURE LABELS; LACQUERS, namely, TEMPERATURE INDICATING LACQUERS; LOGGERS, namely, POWER LOGGERS; MANOMETERS, namely, HANDHELD MANOMETERS; METERS, namely, AC/DC METERS, AC CLAMP METERS, AIR VELOCITY METERS, ANALOG METERS, BENCH TOP METERS, BENCH TOP CONDUCTIVITY METERS, BENCH TOP PH METERS, BENCH TOP DISSOLVED OXYGEN METERS, CONDUCTIVITY METERS, CONDUCTIVITY/TDS METERS, CURRENT METER, DATALOGGING PH/MV METERS, DC VOLT METERS, DEWPOINT METERS, DIGITAL METERS, DISSOLVED OXYGEN METERS, FLOW METERS, FREQUENCY METERS, HANDHELD METERS, HANDHELD DISSOLVED OXYGEN METERS, HANDHELD CONDUCTIVITY METERS, HANDHELD STRAIN GAGE METERS, HANDHELD HUMIDITY METERS, PANEL INSTRUMENTATION METERS, LABORATORY CONDUCTIVITY METERS, LARGE DISPLAY METERS, LOAD METERS, LOOP POWERED METERS, LOAD CELL METERS, MICROVOLT METERS, MINIATURE METERS, OHM METERS, PANEL METERS, PANEL MOUNTED METERS, PH METERS, PH/MV METERS, PH/KV/ISE METERS, PH/ORP METERS, POTENTIOMETERS, PORTABLE CONDUCTIVITY METERS, PORTABLE DISSOLVED OXYGEN METERS, PORTABLE PH METERS, PORTABLE PRESSURE METERS, POSITIVE DISPLACEMENT METERS, PRESSURE METERS, PROCESS METERS, PROCESS INSTRUMENTATION METERS, PROGRAMMABLE PROCESS METERS, QUADRATURE METERS, RATE METERS, REFERENCE POINT METERS, RELATIVE HUMIDITY METERS, RDT METERS, STRAIN-GAUGE METERS, SOLAR POWERED METERS, STRAIN METERS, TEMPERATURE METERS, SQUARE ROOT METERS, TEMPERATURE METERS USING INFRARED TECHNOLOGY, THERMISTOR METERS, THERMOCOUPLE RTD METERS, THERMOCOUPLE METERS, TRUE-RMS (ROOT MEAN SQUARE) METERS, TURBINE METERS, VOLTAGE METERS PLASTIC VORTEX METERS, HARSH ENVIRONMENT VORTEX METERS, WATER METERS, WATERTIGHT PH METERS; MIXERS, namely, BUNG-ENTERING MIXERS, STATIC MIXERS; MODEMS, namely, SHORT HAUL MODEMS; MODULES, namely, INTELLIGENT CONTROL MODULES, ISOLATION MODULES, LOOP ISOLATOR MODULES, PROPORTIONAL FIRING MODULES, PULSE CONTROL MODULES, SOLID STATE I/O MODULES; MONITORS, namely, CONDUCTIVITY MONITORS, DEWPOINT MONITORS, ENVIRONMENTAL MONITORS, HANDHELD PRESSURE MONITORS, HANDHELD TEMPERATURE MONITOR, POWER LINE MONITORS; MULTIMETERS, namely, DIGITAL MULTIMETERS, HANDHELD MULTIMETERS, MULTI-FUNCTIONAL MULTIMETERS, MULTIMETERS/THERMOMETERS; PANELS, namely, POWER CONTROL PANELS; PAPERS, namely, PH INDICATING PAPERS; PELLETS, namely, TEMPERATURE INDICATING PELLETS; PLOTTERS; PRINTER, namely, PANEL-MOUNT PRINTERS; PROBES, namely, CONDUCTIVITY PROBES; PROFILERS, namely, TEMPERATURE PROFILERS; [ PSYCHROMETERS, namely, SLING PSYCHROMETERS; ] PUMPS, namely, CARBOY DRUM PUMPS, CENTRIFUGAL PUMPS, CHEMICAL DOSING PUMPS, CHEMICAL METERING PUMPS, DIAPHRAGM METERING PUMPS, DRUM PUMPS, ELECTRONIC METERING PUMPS, GEAR PUMPS, HAND PUMPS, LARGE CAPACITY METERING PUMPS, MICROPROCESSOR BASED CHEMICAL METERING PUMPS, LOW FLOW METERING PUMPS, MAGNETIC DRIVE CENTRIFUGAL PUMPS, PERISTALIC PUMPS, RUBBER IMPELLER PUMPS; PYROMETERS, namely, INFRARED RADIATION PYROMETERS; RECEIVERS, namely, PROCESS RECEIVERS; RECORDERS, namely, ANALOG RECORDERS, BATTERY POWERED RECORDERS, BENCHTOP RECORDERS, CIRCULAR RECORDERS, COMPACT RECORDERS, DISTRIBUTED PROCESS RECORDERS, EVENT RECORDERS, FLATBED RECORDERS, FUNCTION RECORDERS, HYBRID RECORDERS, INDICATING RECORDERS, INK JET RECORDERS, MICROPROCESSOR RECORDERS, PAPER LESS RECORDERS, PH RECORDERS, PORTABLE RECORDERS, PROGRAMMABLE RECORDERS, TEMPERATURE RECORDERS, THERMAL RECORDERS, THERMAL-ARRAY RECORDERS, TRANSIENT RECORDERS, TREND RECORDERS, VERTICAL RECORDERS, X-Y RECORDERS; RELAYS, namely, INTRINSIC SAFETY RELAYS, MECHANICAL RELAYS, POWER SWITCHING RELAYS, SOLID STATE RELAYS, PUMP UP/PUMP DOWN RELAYS; ROTAMETERS, namely, ACRYLIC ROTAMETERS, GAS PROPORTIONING ROTAMETERS, INDUSTRIAL ROTAMETERS, LABORATORY ROTAMETERS, MULTIPLE TUBE ROTAMETERS; PURGE ROTAMETERS; SCANNERS, namely, PROCESS SCANNERS, TEMPERATURE SCANNERS; SEALS, namely, DIAPHRAGM PRESSURE SEALS; SENSORS, namely, CONDUCTIVITY SENSORS, CONDUCTIVITY/RESISTIVITY SENSORS, DISPLACEMENT SENSORS, LOW FLOW SENSORS, NON-CONTACT CONDUCTIVITY SENSORS; PADDLEWHEEL SENSORS, TORQUE SENSORS, VACUUM SENSORS; SIMULATORS, namely, PH ELECTRODE SIMULATORS, RTD SIMULATORS, THERMOCOUPLE SIMULATORS; SNUBBERS, namely, PRESSURE SNUBBERS; STANDARDS, namely, BENCHTOP PRESSURE STANDARDS, HANDHELD PRESSURE STANDARDS, MELTING POINT STANDARDS; STIRRERS, namely, LAB HOT PLATE/STIRRERS; SUPPLIES, namely, POWER SUPPLIES; SWITCHES, namely, CONDUCTIVITY LEVEL SWITCHES; LEVEL SWITCHES, DRY MATERIAL LEVEL SWITCHES, INDUSTRIAL FLOW SWITCHES, PADDLE TYPE SWITCHES, PRESSURE SWITCHES; RADIO FREQUENCY LEVEL SWITCHES, SINGLE STATION LEVEL SWITCHES; TACHOMETERS; TESTERS, namely, CONDUCTIVITY TESTERS, PH TESTERS, POCKET PH TESTERS, POCKET TESTERS, SOLDER SYSTEM TESTERS; THERMOCOUPLES; THERMOMETERS, namely, BENCHTOP THERMOMETERS, BI-METAL THERMOMETERS, COMPOST THERMOMETERS, DIAL THERMOMETERS, DIGITAL THERMOMETERS, GLASS THERMOMETERS, HANDHELD THERMOMETERS, INFRARED THERMOMETERS, MICROPROCESSOR BASED THERMOMETERS, NON-CONTACT THERMOMETERS, PORTABLE THERMOMETERS, RADIATION THERMOMETERS; THERMOSTATS; TIMERS, namely, PERIOD TIMERS; TOTALIZERS, namely, RATAMETERS/ TOTALIZERS; TRANSDUCERS, namely, AIR MASS FLOW TRANSDUCERS, AIR VELOCITY TRANSDUCERS, INFRARED TRANSDUCERS, PRESSURE TRANSDUCERS; TRANSMITTERS, namely, CHILLED MIRROR TRANSMITTERS, CONDUCTIVITY, CONTINUOUS LEVEL TRANSMITTERS, DEWPOINT TRANSMITTERS, DIGITAL TRANSMITTERS, INFRARED TRANSMITTERS, INDICATING TRANSMITTERS, INDICATING TRANSMITTERS AND RECORDERS, INTELLIGENT TRANSMITTERS, PH TRANSMITTERS, PROGRAMMABLE TRANSMITTERS, RELATIVE HUMIDITY TRANSMITTERS, MODULAR INDICATOR/ CONTROLLER TRANSMITTERS, PRESSURE TRANSMITTER, RTD TRANSMITTERS, SMART TRANSMITTERS, TEMPERATURE TRANSMITTERS, THERMOCOUPLE TRANSMITTERS, TWO-WIRE CONDUCTIVITY TRANSMITTERS, TWO-WIRE PH TRANSMITTERS, TWO-WIRE RESISTIVITY TRANSMITTERS, WIRELESS TRANSMITTERS; LABORATORY TUBES, namely, PITOT TUBES; LABORATORY TUBING, namely, METAL TUBING, PLASTIC TUBING, RUBBER TUBING; VALVES, namely, METERING VALVES, SOLENOID VALVES, VOLTMETERS, namely, STRAIN GAUGE/MICRO VOLTMETERS, LABORATORY WIND TUNNELS; WIRE, namely, NICHROME RESISTANCE WIRES, SENSOR WIRES, SUPERCONDUCTIVE WIRES, THERMOCOUPLE WIRE; AND PARTS THEREFOR INDUSTRIALLY AND/OR SCIENTIFICALLY EMPLOYED

[ RETAIL STORE SERVICES, ] MAIL ORDER CATALOG SERVICES, CATALOG BASED TELEPHONE RETAIL SERVICES, [ AND COMPUTERIZED ON-LINE RETAIL SERVICES ] FEATURING TEMPERATURE AND HUMIDITY MEASUREMENT AND CONTROL COMPONENTS, ELECTRICAL DEVICES, SCIENTIFIC APPARATUS, SCIENTIFIC AND LABORATORY MEASURING DEVICES, BOOKS, COMPUTERS, HEATERS, PRESSURE STRAIN AND FORCE TRANSDUCERS, GAGES, SWITCHES, FLOW AND LEVEL MEASUREMENT SYSTEMS, PUMPS, MIXERS, TUBING VALVES, PH AND CONDUCTIVITY INSTRUMENTATION AND DATA ACQUISITION SYSTEMS