Electrode substrate, measuring device, removal tool, and measuring method

A measuring device for measuring an electrical resistance of biological cells or tissues, comprising:

• an electrode substrate having
• a substrate having a base section, a first extension part extending from said base section, and a second extension part extending from said base section,
• a plurality of connection terminals provided on a surface of said base section,
• a first working electrode and a second working electrode each connected to one of said connection terminals, said first and second working electrodes being wired on a surface of said substrate, and
• an engagement surface provided on said substrate and facing toward said connection terminals in a position closer to said first extension part than said connection terminals,
• said first working electrode being wired from said base section to said first extension part,
• said second working electrode being wired from said base section to said second extension part;
• and
• a relay section to which said electrode substrate is to be removably attached,
• wherein said relay section includes
• a plurality of contact parts for contact with said respective connection terminals.