WPI (World Precision Instruments)
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| Brand | WPI (World Precision Instruments) |
|---|---|
| Model | EVOM3 |
| Origin | USA |
| Type | Epithelial/Endothelial Transepithelial Electrical Resistance (TEER) Measurement System |
| Measurement Principle | AC-based impedance spectroscopy with constant-current excitation (40 Hz, 2–10 µA) |
| Display | 7-inch capacitive touchscreen |
| Data Output | USB-stored CSV files with timestamped TEER (Ω·cm²), voltage (mV), and temperature (°C) |
| Current Ranges | 2 µA, 4 µA, 10 µA (user-selectable fixed-current mode) |
| Resistance Range | 1 Ω to 100 kΩ (auto-ranging or fixed-range optimized for barrier integrity assays) |
| Resolution | 0.1 Ω at 200 Ω |
| Compliance | Designed for GLP-compliant in vitro barrier function studies |
| Brand | WPI (World Precision Instruments) |
|---|---|
| Origin | USA |
| Model | SYS-PV840 |
| Type | Automated Microinjection & Electroporation System |
| Operating Pressure | Up to 87 PSI |
| Pulse Duration | 0.5 s |