The STX4 from WPI is the newest, most innovative electrode for your EVOM. It facilitates measurements of voltage (potential difference:PD) and resistance (transepithelial electrical reistance: TEER) of cultured epithelia (cellular layer) grown onto permeable membrane inserts in 12- and 24- well tissue culture plates. The SXT4 can measure directly inside 12- an 24-well inserts inside well plates.
The STX4's electrode design allows you to set the correct depth and keep the electrode vertical and centered on top of a 24-well transwell. Once the electrode is placed securely, and the electrode movement ceases, a stable reading can be obtained with the EVOM, negating any need to take multiple measurements.