These head mounted probes consist of minerally insulated sensors terminated in an IP67 waterproof connection head, containing a ceramic terminal block and offering an M20 cable entry gland. They are available in a variety of lengths and diameters (email sales@tmethermometers.com for a quote), to suit a range of applications. TME also offers a wide range of different compression fittings and bayonet adaptors to suit many process threads for ease of installation.