# K042150: Xltek Trex Model#10309

- Pathway: 510(k) (Special)
- Applicant: Excel Tech., Ltd.
- Decided: Aug 27, 2004 after 18 days
- Product code: GWQ (Full-Montage Standard Electroencephalograph)
- Device class: 2
- Regulation: 21 CFR 882.1400
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
9 later devices descend from it; 3 cite it directly.
0 of 10 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Most influential descendants
- K071782: Micromed Brain Spy Plus, Embia Titanium Devices (2008), 4 descendants of its own
- K122196: Cervello Bio-Potential Signal Acquistion System Product Family (2013), 3 descendants of its own
- K133995: Neuron-Spectrum-4/P with Neuron-Spectrum.Net Software (2015), 1 descendant of its own
- K131335: Bwmini Eeg, Bwminihst, Bwmini PSG (2015), 1 descendant of its own
- K131266: Trez_HD (2014), 1 descendant of its own

## Indications for use
The XLTEK TREX is intended to be used as an electroencephalograph: acquire, display, store and archive electroencephalographic signals.

Source page: https://510kreport.com/device/K042150
Methodology: https://510kreport.com/methodology