N400/800 Accessories
Neurosign 400 Pre-Amplifier Pod
The Pre-Amplifier is the vital component in the Neurosign system.
The Pre-Amplifier takes the minute voltages collected by the needle electrodes and amplifies them so that they can be transmitted along 4 metres of cable and out of the operating area.
The circuit has an excellent 'Common Mode Rejection Ratio', which enables the Neurosign 400 to minimise artifacts. In addition, its unique inbuilt circuit features ensure patient safety.
Technical Specifications:
- 4 Channels
- CMMR > 100dB
- Gain = 477
Neurosign 800 Pre-Amplifier Pod
Featuring the same circuit as the Neurosign 400 Pre-Amplifier, except with 8 channels, this Pre-Amplifier maintains Neurosign's no-compromise approach to quality monitoring.
The 800 Pre-Amplifier enables high performance monitoring of cranial and peripheral nerves under difficult conditions.
Technical Specifications:
- 8 Channels
- CMMR > 100dB
- Gain = 477
Hard Protective Case

This waterproof rigid case provides robust storage protection, especially if the Neurosign 400/800 is used on multiple sites. There is room for the Neurosign 400/800 and all its component parts. Colour may vary.
For further information, queries or feedback, please contact neurosign.info@magstim.com