This rugged design offers a variety of protection heads with 1/2" NPT mounting threads and 304 SS sheath. The RTD probe length dimension includes a 1/2" thread allowance for use with thermowells or for direct immersion into the process. Available in 1/2, 3/16, or 1/8 inch diameter probes. Stamdard lengths are 6, 12, 18, or 24 inches The standard probe uses a Style 2 (3-wire) lead configuration, but other configurations are available. All RTD probes include a screw terminal block for easy connection of copper extension wire. Intermediate probe lengths are available. Use the next longest standard probe’s price. Lengths over 24" are also available; contact Sales Department Availability and Pricing.