National Basic Sensor — When Temperature Matters

ISO 9001:2015 Certified

PRODUCT CONFIGURATOR

All products

Select a product family to enter your specifications and request a quote.

142 product families

Filters show available family options. Available combinations are checked as you configure.

Thermocouple elements

Base-Metal Thermocouple Element

Base-metal sensing element with a choice of wire and ceramic insulation.

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Thermocouple elements

Noble-Metal Thermocouple Element

Fine-wire element with bare-wire, ceramic-insulated and unassembled construction choices.

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Pipe protected

Angled Protection-Tube Thermocouple

Right-angle protection tube with separate hot-leg and cold-leg lengths.

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Pipe protected

Metal-Ceramic Protection-Tube Thermocouple

LT-1 metal-ceramic protection tube with a connection head.

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Pipe protected

Metal Protection-Tube Thermocouple

Metal protection tube with a connection head and choice of process mounting.

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Ceramic protected

Ceramic Thermocouple — Fixed Threaded Fitting

Ceramic tube with a fixed ½″ NPT brass hex bushing and connection head.

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Ceramic protected

Ceramic Thermocouple — Adjustable Fitting

Ceramic tube with a ¾″ NPT steel hex mounting bushing and connection head.

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Ceramic protected

Ceramic Thermocouple — Alternate Threaded Fitting

Ceramic tube with a 1″ NPT stainless steel pipe nipple and connection head.

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Ceramic protected

Ceramic Thermocouple — Threaded Mount

Ceramic tube with a 1¼″ NPT steel hex mounting bushing and connection head.

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Ceramic protected

Ceramic Thermocouple — Threaded Sleeve

Ceramic tube inside a threaded pipe nipple; specify both tube and nipple lengths.

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Ceramic protected

Ceramic Thermocouple — Pipe Sleeve

Ceramic tube inside a pipe sleeve; specify both tube and sleeve lengths.

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Ceramic protected

Ceramic Thermocouple — Open Head & Ferrules

Ceramic tube with an open laboratory terminal head and mounting ferrules.

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Ceramic protected

Silicon-Carbide Thermocouple — Support Casting

Silicon-carbide outer tube, inner ceramic tube and open head with support casting.

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Ceramic protected

Silicon-Carbide Thermocouple — Weatherproof Cover

Silicon-carbide outer tube, inner ceramic tube and enclosed weatherproof cover.

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Insulated wire assemblies

Wire Thermocouple — Protective Tube

Insulated-wire sensor in a stainless steel tube, with straight or bent tip options.

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Insulated wire assemblies

Wire Thermocouple — Bayonet Mount

Rigid sensing tube with a bayonet cap, spring and insulated leadwire.

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Insulated wire assemblies

Armored Thermocouple — Bayonet Mount

Short rigid tip with flexible metal armor and a bayonet mounting cap.

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Insulated wire assemblies

Wire Thermocouple — Mounting Fitting

Short rigid tip with a spring-covered lead section and mounting fitting.

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Insulated wire assemblies

Field-Cuttable Wire Thermocouple

¼″ stainless steel probe with 6″ leads; can be cut to a 3″ minimum length.

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Insulated wire assemblies

Pipe-Clamp Thermocouple

A sensing assembly built into a pipe clamp, with your choice of leadwire termination.

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Insulated wire assemblies

Washer-Mounted Thermocouple

Washer-mounted sensing point with a choice of stud size and leadwire termination.

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Insulated wire assemblies

Insulated-Wire Thermocouple

Flexible insulated thermocouple wire with a sensing junction and selected termination.

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Insulated wire assemblies

Thermocouple Leadwire Assembly

Insulated thermocouple leadwire with separately selected terminations at each end.

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Insulated wire assemblies

Melt-Bolt Thermocouple — Sheath Extension

Melt-bolt sensor with a rigid stainless steel sheath extension behind the bolt.

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Insulated wire assemblies

Melt-Bolt Thermocouple — Flexible Armor

Melt-bolt sensor with a flexible armored extension behind the bolt.

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MgO / NABA-PAK

MgO Thermocouple — Head & Optional Fitting

Sheathed probe with a connection head and optional compression or mounting fitting.

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MgO / NABA-PAK

MgO Thermocouple — Leadwires & Welded Hex

Leadwire assembly with a hex fitting welded to the sheath for a fixed insertion length.

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MgO / NABA-PAK

MgO Thermocouple — Leadwires & Spring Fitting

Leadwire assembly with a spring-loaded threaded fitting and specified insertion depth.

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MgO / NABA-PAK

Handheld Thermocouple — Coiled Cord

Handheld sheathed probe with a grip, coiled lead and selected connector.

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MgO / NABA-PAK

MgO Thermocouple — Leadwire Transition

Sheathed probe joined to flexible leadwire through a transition fitting.

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MgO / NABA-PAK

Magnetic Thermocouple

Magnetic sensing assembly with a leadwire transition and selected termination.

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MgO / NABA-PAK

MgO Thermocouple — Head & Spring Nipple

Connection head with a spring-loaded nipple extension between the head and probe.

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MgO / NABA-PAK

MgO Thermocouple — Split Pigtails

Sheathed probe ending in exposed 2½″ pigtail leads for direct wiring.

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MgO / NABA-PAK

MgO Thermocouple — Plug Or Jack

Plug or jack mounted directly on the sheathed probe, with optional mating connector.

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MgO / NABA-PAK

MgO Thermocouple — Head & Spring-Loaded Hex

Connection head with a compact spring-loaded hex fitting at the probe connection.

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MgO / NABA-PAK

MgO Thermocouple — Head & Union Assembly

Connection head with a nipple–union–nipple extension and spring-loaded probe.

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MgO / NABA-PAK

MgO Thermocouple — Sheath Spring

Sheath-gripping spring with 6″ pigtail leads, without a connection head.

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MgO / NABA-PAK

MgO Thermocouple — Head & Welded Fitting

Connection head with a fitting welded to the sheath for a fixed insertion length.

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MgO / NABA-PAK

Weld-Pad Thermocouple

Sheathed probe with a flat or curved weld pad at the sensing end.

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MgO / NABA-PAK

Weld-Pad Thermocouple — Leadwire Transition

Weld-pad probe with a transition to flexible leadwire behind the sheath.

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Vacuum furnace

Vacuum Thermocouple — Sealing Gland

Vacuum-furnace probe with a sealing gland between the connector and sheath.

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Vacuum furnace

Vacuum Thermocouple — Gland & Sleeve

Vacuum-furnace probe with a sealing gland and an additional Inconel sleeve.

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Vacuum furnace

Vacuum-Furnace Thermocouple

Vacuum-furnace probe with selected termination, without the gland or sleeve assembly.

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RTDs

Bayonet RTD — Cap & Spring

RTD sensing tip with a bayonet cap, spring and flexible leadwire.

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RTDs

RTD — Head & Optional Fitting

Sheathed RTD with a connection head and optional compression or mounting fitting.

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RTDs

RTD With Leadwires

Stainless steel RTD probe with insulated leadwires exiting directly from the sheath.

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RTDs

RTD — Leadwires & Welded Hex

Leadwire RTD with a hex fitting welded to the sheath for a fixed insertion length.

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RTDs

RTD — Leadwires & Spring-Loaded Hex

Leadwire RTD with a spring-loaded hex fitting and specified insertion depth.

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RTDs

RTD — Leadwire Transition

RTD probe joined to flexible leadwire through a separate transition fitting.

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RTDs

RTD — Head & Spring-Loaded Nipple

Connection head with a spring-loaded nipple extension between the head and RTD probe.

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RTDs

RTD With Quick Connector

Quick-disconnect connector mounted directly on the RTD probe.

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RTDs

RTD — Head & Spring-Loaded Hex

Connection head with a compact spring-loaded hex fitting at the RTD probe connection.

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RTDs

Field-Cuttable RTD

Platinum RTD with leadwires and a sheath that can be shortened to a 3″ minimum.

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RTDs

RTD — Head & Union Assembly

Connection head with a nipple–union–nipple extension and spring-loaded RTD probe.

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RTDs

RTD — Sheath Spring & 6-Inch Pigtails

RTD probe with a sheath-gripping spring and 6″ pigtail leads, without a head.

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RTDs

RTD — Head & Welded Hex

Connection head with a hex fitting welded to the RTD sheath for a fixed insertion length.

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Thermowells

Threaded Thermowell

Screws into a threaded process connection; choose the shank shape and optional lag extension.

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Thermowells

Flanged Thermowell

Flange-mounted well with a choice of shank, flange size, rating and facing.

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Thermowells

Van Stone Thermowell

A well with a raised collar for use with a separate backing flange.

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Thermowells

Socket-Weld Thermowell

Socket-style process connection with straight, stepped or tapered shank choices.

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Thermowells

Weld-In Thermowell

Tapered-shank well for a welded installation, with a choice of rear diameter and lag extension.

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Connection heads

Aluminum Screw-Cover Head

Epoxy-coated aluminum enclosure with a screw cover and choice of tube connection size.

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Connection heads

Cast-Iron Screw-Cover Head

Cast-iron screw-cover enclosure with ½″, ¾″ or 1″ NPT tube connections.

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Connection heads

Stainless Steel Screw-Cover Head

316L stainless steel screw-cover enclosure with a choice of tube connection size.

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Connection heads

Explosion-Proof Connection Head

Epoxy-coated cast-aluminum head with a ½″ NPT tube port and ¾″ NPT conduit port.

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Connection heads

Aluminum Flip-Top Head

Hinged aluminum cover with latch or screw-down closure and a choice of port sizes.

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Connection heads

Nylon Screw-Cover Head

Black nylon screw-cover enclosure with a ½″ NPT tube port and ¾″ NPT conduit port.

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Connection heads

Polypropylene Screw-Cover Head

White polypropylene screw-cover enclosure with a ½″ NPT tube port and ¾″ NPT conduit port.

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Connection heads

Thermoplastic Head — Built-In Terminals

Grey Delrin enclosure with three or six built-in terminals.

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Connection heads

Noble-Metal Laboratory Head

Open brass terminal head for Type S, R or B noble-metal thermocouples.

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Connection heads

Miniature Closed Head

Compact nickel-plated steel head with integral terminals, an O-ring seal and cap grommet.

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Connection heads

Micro Head — Open Terminals

Small open-terminal head that mounts directly on the sheath with a compression fitting.

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Terminal blocks & strips

2-Terminal Block

Two-terminal insert for the listed aluminum, cast-iron and stainless steel screw-cover heads.

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Terminal blocks & strips

4-Terminal Block

Four-terminal insert for the listed aluminum, cast-iron and stainless steel screw-cover heads.

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Terminal blocks & strips

Round Terminal Block

Round insert with a choice of terminal count and positions for the listed screw-cover heads.

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Terminal blocks & strips

Split Terminal Block

Split insert with selectable terminal arrangements for the listed compact connection heads.

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Terminal blocks & strips

Compensated Terminal Strip

Glass-filled nylon strip with thermocouple-alloy terminals; choose calibration and terminal count.

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Plugs, jacks & panel connectors

Miniature Plug

Miniature male connector with flat contacts; choose two or three pins and calibration.

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Plugs, jacks & panel connectors

Miniature Jack

Miniature female connector for flat-pin plugs; choose two or three contacts and calibration.

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Plugs, jacks & panel connectors

Standard Plug

Standard male connector with round pins; choose two or three pins and calibration.

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Plugs, jacks & panel connectors

Standard Jack

Standard female connector for round-pin plugs; choose two or three contacts and calibration.

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Plugs, jacks & panel connectors

Jab-In Standard Plug

Two-pin standard plug with a one-piece molded body for wire up to 14 AWG.

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Plugs, jacks & panel connectors

Jab-In Standard Jack

Two-contact standard jack with a one-piece molded body for wire up to 14 AWG.

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Plugs, jacks & panel connectors

High-Temperature Standard Plug

Reddish-brown high-temperature plug with two standard round pins and selected calibration.

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Plugs, jacks & panel connectors

High-Temperature Standard Jack

Reddish-brown high-temperature jack for a two-pin standard round-pin plug.

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Plugs, jacks & panel connectors

Miniature Panel Jack

Panel receptacle for miniature flat-pin plugs, with direct or circular mounting choices.

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Plugs, jacks & panel connectors

Standard Panel Jack

Panel receptacle for standard round-pin plugs, with direct, bezel or circular mounting choices.

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Plugs, jacks & panel connectors

Standard Panel Plug

Two-pin male connector with standard round pins for direct panel mounting.

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Connector accessories

Connector Cable Clamp

Cable-retaining clamp sized for a miniature or standard connector.

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Connector accessories

Cable-Clamp Grommet

Neoprene insert used with the cable clamp on a miniature or standard connector.

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Connector accessories

Connector Grommet

Neoprene cable-entry grommet sized for the miniature or standard connector body.

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Connector accessories

Connector Boots

Neoprene covers for miniature or standard connectors; used in pairs and quoted by individual boot.

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Connector accessories

Connector Tube Adapter

Compression adapter that connects a sensor tube to a standard connector.

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Connector accessories

Thermocouple Terminal Lugs

Thermocouple-alloy terminal, spade or ring lugs; choose the style and conductor alloy.

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Connector accessories

Porcelain Thermocouple Wire Nuts

Porcelain wire connectors in packs of ten, with a choice of wire capacity.

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Mounting fittings

Compression Fitting

Threaded sensor mounting fitting with a choice of body, ferrule, tube size and NPT thread.

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Mounting fittings

Spring-Loaded Nipple

316 stainless steel spring-loaded fitting for a ¼″ cuttable thermocouple, with an optional Viton seal.

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Mounting fittings

Bayonet Adapter

Threaded adapter for a bayonet cap, with a choice of material, length and mounting thread.

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Mounting fittings

Adjustable Bayonet Compression Fitting

Compression nut and spring-loaded bayonet fitting for a ⅛″ probe.

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Mounting fittings

Adjustable Pipe Flange

Cast-iron mounting flange sized for a metal protection tube or ceramic tube sleeve.

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Wire

Bare Thermocouple Wire

Uninsulated solid thermocouple wire, supplied as a positive conductor, negative conductor or matched pair.

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Wire

PVC Extension Wire

Extension-grade wire with PVC conductor insulation and an overall PVC jacket.

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Wire

Shielded PVC Extension Wire

PVC extension wire with an overall aluminum/polyester shield and drain wire.

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Wire

FEP Thermocouple Wire

Thermocouple-grade wire with FEP conductor insulation and an overall FEP jacket.

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Wire

PFA Thermocouple Wire

Thermocouple-grade wire with PFA conductor insulation and an overall PFA jacket.

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Wire

Fiberglass Thermocouple Wire

Fiberglass-insulated thermocouple wire with an overall fiberglass braid and optional metal overbraid.

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Wire

High-Temperature Fiberglass Wire

High-temperature fiberglass construction in thermocouple or extension grade, with optional metal overbraid.

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Wire

Refrasil Thermocouple Wire

Type K, 20 AWG solid wire insulated with Refrasil vitreous silica fiber braid.

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Wire

Ceramic-Fiber Thermocouple Wire

Type K, 20 AWG solid wire with ceramic-fiber conductor insulation and overall braid.

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Wire

PFA RTD Wire

24 AWG stranded RTD cable with a blue PFA jacket and a choice of three, four or six conductors.

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Protection tubes

Metal Protection Tube

Metal tube with optional welded bushing or adjustable flange mounting.

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Protection tubes

Metal-Ceramic Protection Tube

⅞″ LT-1 metal-ceramic tube with plain or threaded mounting arrangements.

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Protection tubes

Plain Ceramic Protection Tube

Plain mullite or alumina tube without a mounting bushing, sleeve or ferrule.

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Protection tubes

Silicon Carbide Protection Tube

1¾″ silicon-carbide tube with a plain open end or a 3″ mounting collar.

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Protection tubes

Reinforced Silicon Carbide Tube

2″ silicon-carbide graphite tube with a pipe and NPT connection.

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Protection tubes

Ceramic Tube With Mounting Bushing

Mullite or alumina tube with a threaded metal bushing; choose the thread and bushing material.

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Protection tubes

Ceramic Tube With Sleeve Or Nipple

Ceramic tube inside a stainless steel sleeve or threaded nipple; specify both lengths.

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Protection tubes

Ceramic Tube With Brass Ferrule

11/16″ ceramic tube with a 2″ brass ferrule and machine-thread connection.

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Insulators

Oval Double-Bore Insulator

Oval ceramic insulator with two wire bores, offered in 1″ and 3″ lengths.

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Insulators

Round Four-Bore Insulator

Round, 1″-long ceramic insulator with four wire bores, sized by wire gauge.

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Insulators

Fish-Spine Insulator

Short fish-spine ceramic insulators, sized for the selected wire gauge.

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Insulators

One-Piece Double-Bore Insulator

Continuous two-bore mullite or alumina insulator, supplied to the required length.

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Outlet boxes & panels

Nylon Outlet Box

Glass-reinforced nylon box with ¾″ NPT inlets; panel and connectors are selected separately.

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Outlet boxes & panels

Aluminum Outlet Box

Cast-aluminum box with ¾″ NPT inlets; panel and connectors are selected separately.

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Outlet boxes & panels

Outlet-Box Connector Panel

Aluminum cover panel, blank or with selected connector openings; box and connectors are separate.

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Tubing & flexible armor

Metal Tubing

316 stainless steel or Inconel tubing, specified by outside diameter, wall thickness and cut length.

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Tubing & flexible armor

Flexible Stainless Steel Armor

Square-lock stainless steel armor with uncoated or PVC-coated construction choices.

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Mounting fittings

Silicon-Carbide Tube Support Casting

Cast-iron support for a 1¾″ silicon-carbide tube with a 3″ collar.

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Mounting fittings

Silicon-Carbide Tube Weatherproof Fitting

Cast-iron fitting for an uncollared 1¾″ silicon-carbide tube, with a ¾″ NPT internal thread.

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Pipe & pipe fittings

Schedule 40 Metal Pipe

Schedule 40 pipe with a choice of alloy, nominal pipe size and length per piece.

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Pipe & pipe fittings

Schedule 40 Pipe Nipple

Schedule 40 pipe with threaded ends, offered in listed or custom lengths.

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Pipe & pipe fittings

Straight Pipe Coupling

Straight female-threaded coupling for joining two pipe sections of the same nominal size.

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Pipe & pipe fittings

90° Pipe Elbow

Female-threaded fitting that turns the pipe connection through 90°.

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Pipe & pipe fittings

Pipe Union

Threaded union for a separable joint between two pipe sections.

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Pipe & pipe fittings

Hex Pipe Bushing

Hex reducing bushing with a larger external NPT thread and smaller internal NPT thread.

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Pipe & pipe fittings

Hex Pipe Plug

½″ NPT male-threaded closure with a hex head, in stainless steel or brass.

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Instrumentation

Programmable RTD Transmitter

Head-mounted transmitter for a 3-wire Pt100 RTD, with a programmable 4–20 mA output.

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Instrumentation

Universal HART Transmitter

Head-mounted transmitter for thermocouple or RTD inputs, with 4–20 mA and HART output.

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Instrumentation

Field-Mounted HART Transmitter

Field-mounted transmitter with an integral display, aluminum or stainless housing, and HART output.

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Instrumentation

USB Transmitter Programming Kit

USB communication interface and cables for programming compatible transmitters.

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Instrumentation

Sensor / Wall-Mounted Temperature Display

Battery-powered, six-digit temperature display with a choice of RTD or thermocouple input.

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Bimetal thermometers

Adjustable Angle Bimetal Thermometer

Stainless steel adjustable-angle thermometer with a 3″, 4″ or 5″ dial and selected stem length.

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