The present invention relates to an electronic jig for measuring a diameter, comprising: a main body of which an upper surface has a display; a QR code reader reading QR codes attached to various pressure type joint products on one side surface of the main body; first and second measurement stands adhering to an outer side surface of a compressed joint product after pressing the pressure type joint products to a pipe; and a distance measurement unit transversely installed inside the main body and measuring a pressure diameter in accordance with a contact state of the first and second measurement stands.
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