All four ECA models share Sensitify Studio and a 24-bit ADC. The differences are in modes, power, EIS bandwidth, analog front-end tuning, and intended use.
At a glance
| Model | Modes | Power | EIS top | Best for |
|---|---|---|---|---|
| ECA-LP1 | Pot + Galv + EIS | USB-C PPS (5–20 V) | 1 MHz | General electrochemistry; the only model with a galvanostat |
| ECA-5M | Pot + EIS | USB 5 V (PC port) | 5 MHz | High-frequency EIS, low-noise. Biosensors, thin films |
| ECA-500k | Pot + EIS | USB 5 V (PC port) | 500 kHz | EIS up to 500 kHz with low-level current measurements |
| ECA-Zero | Pot only | USB 5 V (PC port) | None | Low-level current measurements without EIS |
ECA-LP1
The LP1 covers a ±5 V range at up to 250 mA and requires the bundled USB-C PPS adapter, since the high compliance current exceeds what a standard USB port can supply. It uses the Lemo electrode cable for low noise at fast scan rates. The LP1 is the only ECA model that includes a galvanostat. Full specs are on the product page.
ECA-5M
The 5M covers a ±2 V range at up to 50 mA and is powered directly from the PC's USB port. It uses the banana electrode cable. Among the ECA range, the 5M offers the highest EIS bandwidth (5 MHz) and the lowest current floor (1 pA). It does not include a galvanostat. Full specs are on the product page.
ECA-500k
The 500k covers a ±2 V range at up to 50 mA and is powered directly from the PC's USB port. It uses the banana electrode cable. It has the same 24-bit ADC as the ECA-5M, with EIS up to 500 kHz, at half the price. It does not include a galvanostat. Full specs are on the product page.
ECA-Zero
The Zero covers a ±2 V range at up to 50 mA and is powered directly from the PC's USB port. It uses the banana electrode cable. The instrument carries the same 24-bit ADC as the rest of the range but does not include impedance spectroscopy. Full specs are on the product page.
Choosing between them
The ECA-LP1 is the only model with a galvanostat, a ±5 V range, and 250 mA. The ECA-5M has the highest EIS bandwidth (5 MHz) and the lowest current floor (1 pA). The ECA-500k covers EIS up to 500 kHz. The ECA-Zero is a potentiostat without EIS.