A sterile, noninvasive, battery-powered device designed to measure the cerebrospinal fluid (CSF) pressure/intracranial pressure via lumbar puncture. It is a small housing with an integrated transducer and pressure display intended to be connected to separate invasive CSF access devices (e.g., catheter, cannula, needle) which are inserted into the subarachnoid (intrathecal) space of the lumbar region of the spinal column. This is a single-use device.