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Portable ABR Test System (GT-PABR01)

The convenient ABR testing system (GT-PABR01) can be used for ABR testing of rodents and amphibians, and supports use in multiple environments such as the wild and indoors. The system is completely powered by batteries, which can avoid power frequency interference and other interference caused by alternating current. The sampling rate of this system is 384 kHz, with a resolution of 24 bits, capable of recording high-frequency (>30 kHz) ABR signals, which is crucial for evaluating the function of outer hair cells.

Technical Specifications

Amplifier

High flexibility Remo connector

High input impedance ≥1GΩ

Four channel multi-stage amplification, amplification factor ≥20000

Common mode rejection ratio (CMRR) ≥100dB

Second order bandpass filter 100-3000Hz

Signal Stimulation and Acquisition System

Sampling rate: 384ksps, 24bits

Output signal: sine signal, maximum frequency of 100kHz

Short pure tone stimulation, intensity range: 10-110dB SPL

Power supply method: Battery powered

Power Amplifier

Frequency response: 200Hz-100kHz, 20W

Battery powered to reduce noise

Compact Battery Powered System

No 50/60 Hz (110V/220V) power supply limitation

USB connection to computer

Test Results