- Lead: 3-lead
- Record time: 24-hour
- Power supply: two “AA” batteries
- Interface: USB2.0
- Calibration voltage: 1mV±5%
- Noise level: ≤30μV
- CMRR: ≥60dB
- Low-frequency characteristics: time constant≥3.2s
- Scan speed: 25mm/s±5%
- Polarizing voltage: ±300mV, sensitivity: ≤±10%
- Minimum measure signal: 50 µV p-p