Watlow AR Style MI Thermocouple with Connection Head

Fits permanent MI installations where you need a Watlow Style AR mineral-insulated thermocouple with a connection head — plastic, cast iron, aluminum, or explosion-proof — and optional 4–20 mA head transmitter.

Key advantages

• Style — AR MI thermocouple with connection head
• Temperature — Up to 2200 °F (1200 °C) depending on sheath/calibration
• Heads — Plastic, cast iron, aluminum, explosion-proof; eight head styles
• Transmitter — Optional 4–20 mA head-mounted on styles A/B/C/D/E/H
• Sheath — Formable XACTPAK; diameters to 0.020 in (0.50 mm); dual-element options

Typical applications

• Heat treating, furnaces, kilns.
• Turbines, bearings, power stations.
• Permanent process installs needing conduit heads.

Selection guide

• Head style — Plastic vs cast iron vs Ex
• Transmitter — 4–20 mA yes/no
• Calibration / OD / length — Sensor geometry
• Mounting — Bottom standard; side on request

Common mistakes

• Skipping Ex head when area classification requires it.
• Ordering transmitter-incompatible head style.
• Undersizing sheath OD for mechanical duty.

When to RFQ / what to tell us

1. Head style; type; OD/length.
2. Transmitter; mounting; quantity; ship-to.

Request a Quote · Get selection help

Specs

Documents

• Watlow MI thermocouple documentation (PDF)

FAQ

Q: Optional transmitter? A: Yes — 4–20 mA head-mounted on head styles A/B/C/D/E/H.

Q: Max temperature? A: Up to 2200 °F (1200 °C) depending on sheath/calibration.

Q: What should I send for a quote? A: Head/type/OD/transmitter, quantity, ship-to.

Links

• Request a Quote
• Get selection help
• Category