World Precision Instruments EVOM3 epithelial volt/ohm meter

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The EVOM3 from World Precision Instruments (WPI) is designed to deliver improved workflow efficiency and more stable and repeatable measurements versus traditional transepithelial electrical resistance (TEER) meters.

Providing users with vital feedback during experiment measurements, the product’s large screen offers a range of informational views. The graphical displays for trend analysis and measurement values help scientists deliver simple, stepwise methodology during experimental measurements. The touchscreen interface provides users with an intuitive, easy-to-use menu for configuration.

Eliminating the need to log data by hand, the EVOM3 writes the resistance or voltage information to a USB drive in CSV format for easy transfer to spreadsheets and data analysis programs. When used with the footswitch, it enables hands-free recording of measurements.

At the heart of the device is the latest processor and circuitry, providing users with quick and easy readings due to its fast stabilisation, automatic 20x sampling average and low-noise design. The auto ranging resistance feature allows for fast resistance measurements, and an over-range display feature eliminates false readings. The product has adjustable current levels in three fixed ranges, with two lower ranges for sensitive membranes and high resistance ranges up to 100 kΩ.