This rugged design offers a variety of protection heads with 1/2" NPT mounting threads and 304 SS sheath. The length dimension includes a 1/2" thread allowance for use with thermowells or for direct immersion into the process. The standard probe uses a Style 2 (3-wire) lead configuration, but other configurations are available. All probes include a screw terminal block for easy connection of copper extension wire. Standard probe diameters are 1/8, 3/16, and 1/4". Standard probe lengths are 6, 9, 12, 18, and 24". Intermediate probe lengths are available at the next longer standard probe’s price. Lengths over 24" are also provided contact Sales Department for availability and pricing.