Amplifier Accessories




D175 Electrode Impedance Meter
The D175 Impedance Meter is a compact battery powered device designed to allow checking of electrode impedances prior to recording or stimulating through surface electrodes attached to the skin. In the case of electrical stimulation, high electrode impedance can reduce the amount of current that can pass through the target tissue, resulting in lower than expected stimulation and a poor evoked response.



D179 Performance Checker
The Association of Neurophysiological Scientists (ANS, formerly known as EPTA) have transferred the manufacture of their model 1179 Performance Checker to Digitimer Ltd. As a result, we are now able to offer the updated 1179A unit (model D179) with or without the required function generator.



D360 Audio Interface (Switched)
The D360-AIS gives the operator a tool to select which channel to listen to or feedback to the subject. This is particularly useful during TMS studies where muscle relaxation is easily monitored with the D360-AIS. The unit plugs into the Signal Channel Output socket on the rear of the D360 and the LINE-IN socket of the PC (via a supplied cable). A rotary switch allows the operator to select the channel number to monitor.



USB to Serial Adaptor
As serial ports become less widely available on desktop and laptop computers, this adaptor makes it possible to connect the D360 Amplifier via a USB port. It is important to note that although there are many types of USB to serial adaptors in the market, not all of them will work with the D360.



D177 Bio-Feedback Unit
The Digitimer D177 Bio-Feedback Unit has been developed to improve reproducibility of the Vestibular Evoked Myogenic Potential (VEMP) test. VEMP testing is an established test to check the correct functioning of the saccule, inner ear organs called otoliths, and the eighth nerve.

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