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TREA is the newest ambulatory EEG system from Grass Technologies with sampling/storage rate options of 200 and 400 Hz.

The 25-channel system has the capability of recording data for 72-hours* with (3) Lithium AA batteries enclosed in the amplifier — no need for an external battery pack and additional cables. There are 2 reference inputs and 2 ground inputs. The redundant references and grounds help provide reliability and signal integrity during EEG monitoring procedures.

The compact and lightweight design of TREA offers maximum patient comfort, without sacrificing the ruggedness required for ambulatory studies.

The data stored on the TREA internal solid-state memory transfers to the host computer with Grass Technologies TWin® software via the USB interface cable — no compact flash cards or disks are needed. A Patient Event pushbutton is built into the TREA.

Once the 72 hours of EEG data is transferred to the review station, the study can be processed with Grass Technologies proven seizure and spike detection software or TWin Neuromonitoring Trending software for identifying events of interest. This, along with events marked with the patient pushbutton, helps reduce the amount of data which needs to be reviewed.

An intuitive LCD screen user interface provides status messages for battery level, USB connection, memory usage, recording duration and download status. Also from the LCD display it is possible to check impedances and view individual signals during acquisition.

The same TREA recorder system can be used for in-lab recordings when connected to the host PC, including optional photic stimulation, etc. Data is recorded to the PC's hard disk or a server.

Grass Technologies manufactures a full line of EEG and Long-term Epilepsy recording instruments and Review Workstations. The TWin software is easy-to-use, providing data acquisition, recording, and review capabilities in one flexible package.

Grass Technologies amplifiers are world-renowned in the field of neurophysiology for their quality, reliability, simplicity, and serviceability. A wide range of accessories and options designed specifically for the EEG monitoring is also available.

* Note: 72-hours recording is only possible with the 200 Hz sample rate and Lithium batteries.