1.  Item number  2.  Specifications required  3.  Specifications offered  4. Notes, remarks, ref to documentation  5.  Evaluation  committee’s notes Directionality:  Omnidirectional to within +/- 1 dB up to 20 kHz  horizontal, and to within +/- 2 dB in vertical  Sampling rate:  Minimum 44 kHz in the overall dynamic range  Data storage:  Minimum 512 GB (SD cards or SSD)  System self-noise:  Better than 58 dB re 1 μPa2/Hz at 63 Hz;  Better than 53 dB re 1 μPa2/Hz at 125 Hz  Battery life:  Alkaline: not less than 25 days  Lithium: not less than 75 days  Continuous recording 16 bit resolution, 24 kHz sampling  Calibration : The system has to be fully calibrated (hydrophone  sensitivity and directivity, gain and self-noise) and the calibration  documented for each instrument (no generic data)  Programmable or switchable Input gain: Yes (has to enable various  sensitivities within range required)  Power up/down without opening of housing:  Yes  Start/stop recording without opening of housing:  Yes  Automatic boot out from bottom  Maximum operating depth:  500 m  Temperature range:  -5°C to +40°C  Communication interface for control and setting up of system  parameters:  Yes  Mooring frame:  Frame to enable attachment of deployment equipment  (flotations, acoustic releasers, moorings etc.) to the instrument  Hydrophone protection:  Mechanical protection of hydrophone against  physical damage (e.g. cage)  August 2020 EN-c4f_annexiitechspeciiitechoffer_en.docx  EN-c4f_annexiitechspeciiitechoffer_en.docx Page 56 of 76 