Model ER-6013 with cylindrical element is a fixed-length with a ¾” NPT pipe plug for mounting. This model has a thin walled cylindrical sensing element which is welded onto a body. The all-welded design allows the probe to be used in harsh and high pressure (up to 4000 psi) environments. Velocity shield is recommended for high velocity situations. The probe requires process isolation or process shutdown to install and a threaded pipe fitting to mount.