EVOM2, Epithelial Volt/Ohm Meter for TEER
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Making TEER Measurements to Determine Cellular Confluence
The EVOM was the first instrument designed specifically to perform routine TEER (Transepithelial Electrical Resistance) measurement in tissue culture research. EVOM2 is the next generation, redesigned for ease of use. The EVOM2 not only qualitatively measures cell monolayer health, but also quantitatively measures cellular confluence. The uniqeu electronic circuit of the EVOM2 and the included STX2 electrode detect the confluence of the cellular monolayer. When combined with WPI’s Endohm chamber, the EVOM2 can also be used to perform more accurate quantitative measurement or lower resistance measurements like trans endothelial electrical resistance measurements.
Features of the EVOM2
The isolated power source of the EVOM2 was specifically designed to avoid adverse effects on tissue and the formation of electrode metal deposits, even when it is plugged into a standard wall outlet. Now, the EVOM2 is always on when you need it. In addition, its rechargeable battery allows up to 10 hours of mobile use. The four and a half digit readout provides a range of 1-9,999 ohms. The included test electrode lets you calibrate the resistance measurements for an accurate reading every time, and the voltage meter never needs calibration. An analog BNC output is standard with the EVOM2, providing an output port for recording data or remote display of the EVOM2 output.
Chopstick Electrodes Included with the EVOM2
EVOM2 comes complete with the popular STX2 “chopstick” electrodes, 4mm wide and 1mm thick. Each stick of the electrode pair contains a silver/silver-chloride pellet for measuring voltage and a silver electrode for passing current. The small size of each electrode is designed to facilitate placement of the electrodes into a variety of standard cell culture wells.
More Information about the EVOM2
EVOM2 Remix – Read about the upgrades from EVOM and EVOMX.
See the full-size video. See how to use and EndOhm chamber with an EVOM2 meter.
See the full-size video. In this video Mike shows you how to equilibrate your STX electrodes.
See the full-size video. In this video, you can learn how to test your EVOM2.