The Audio3 Ltd. Warbler is a high-quality, easy to use, free-field audiometer designed by audiologists to help diagnose hearing loss for those who are not typically able to complete a standard headphone-based audiometry test. The Warbletone and Freshnoise sounds provided are specifically designed to accurately (+/- 5dB) determine hearing thresholds at the standard audiometric frequencies. The device can be easily calibrated to within +/- 2 dB using an SPL meter in your own testing environment.
These are now CE marked and can be purchased, if you would like more information please download the User Manual in the support section. And if you think this could help you, please contact me directly. This is a special order item.