circuit and explanation of Digital Measurements Temperature by LM335

Here is circuit Digital Measurements Temperature by IC LM335,
IC LM335Z (TEMP SENSER) volt at IC 2.73V, 10mV : C
VR1 adjustable temp.
This circuit for IC ICL7107Â display temp by LED 7 Segment.

Circuit Digital Measurements Temperature by LM335
Circuit Digital Measurements Temperature by LM335

PCB Digital Measurements Temperature by LM335
PCBÂ Digital Measurements Temperature by LM335