A/1K-NI-DO-4-NIST | CONFIGNIST162. 1,000 Ohm Nickel RTD, Duct, Without Box, 4", SKU: A/1K-NI-DO-4-NIST Parent Item Parent Item - Additional Cost Has Item Option Details A/1K-NI-DO-4-NIST | CONFIGNIST162. 1,000 Ohm Nickel RTD, Duct, Without Box, 4", NIST Cert DetailsBackDetailsA/1K-NI-DO-4-NIST | CONFIGNIST162. 1,000 Ohm Nickel RTD, Duct, Without Box, 4", NIST Cert