WISE R990 Sheet Metal Pad Type Thermocouple

WISE R990 series thermocouples use a thin 316L SS sheet metal pad that is resistance spot-welded to the tube surface, so they can be fitted to tubes carrying water or oil without thermal damage. Low thermal mass gives fast response.

Key features

Element types K, E, J, T, N
316L SS spot-weld pad and clip
Sheath OD 1.0 to 4.8 mm (3.2 mm standard)
Explosion proof head, grounded or ungrounded
Fits curved tube surfaces; no expert welding required

Specifications

Element	K, E, J, T, N
Accuracy	Standard 0.75 %, special 0.4 % of reading
Sheath OD	1.0, 1.6, 2.3, 3.2 (std.), 4.8 mm
Pad and clip material	316L SS
Head type	Explosion proof, ungrounded or grounded
Applications	Boiler, heater and heat exchanger tube skin
Ordering options	Sheath material, welded pad type, conduit, mounting, connection, insert length
Source	WISE data sheet RD09-10

R991		Element: Single
R992		Element: Double (duplex)

Temperature Sensors (TC/RTD)WISE

2 product codes available in this family

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WISE R990 Sheet Metal Pad Type Thermocouple

Brand WISE·Temperature Sensors (TC/RTD)

Available part numbers (2)

R991, R992

How to order

Send the WISE part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.