the thermocouples included a 23 gauge needle microprobe inserted directly into the phantoms , polyurethane-sheathed , teflon-sheathed , and exposed-tip thermocouples , each inserted into a 19 gauge polyurethane closed-end catheter , a multisensor teflon-sheathed probe inserted into a 16 gauge polyurethane catheter and a teflon-sheathed single-sensor probe without a catheter .
C0182400
probe
C0183210
sensor