Hydromoth with Underwater Case

Founding developers Alex Rogers, Andrew Hill, and Peter Prince

Sold Out $145.00 USD

Founding developers Alex Rogers, Andrew Hill, and Peter Prince

The AudioMoth, Hydromoth and MicroMoth were created by two computer science PhD students at the University of Southampton, Andrew Hill and Peter Prince, together with Alex Rogers, a computer science professor at the University of Oxford. The AudioMoth was the first product of their OpenAcousticDevices initiative.

Underwater Acoustic Recorder

Low-Cost, Easy to Deploy

HydroMoth is a variant of the standard AudioMoth specifically designed to be deployed in the underwater case. The HydroMoth hardware is directly compatible with all AudioMoth firmware and uses the same audio front-end and microphone as the standard AudioMoth 1.2.0 and AudioMoth Dev boards.

KEY FEATURES

Tested to a depth of 30m for 2 months, no leakage
Fully submersible with the underwater case
Re-positioned LEDs for improved visibility in the underwater case
Improved 32.768 kHz MEMS oscillator to reduce clock drift
In-built magnetic reed switch, which enables recordings to be started and stopped in wet conditions without opening the case
Compatible with all AudioMoth software
Comes with firmware version 1.5.0 pre-installed

CONTENTS OF THE SET

Hydromoth with Underwater Case

Batteries, microSD card and USB cable not included.

FULFILLMENT

The next batch is expected to be available for sale around mid-October, 2026.

Until then, we recommend using the standard AudioMoth 1.2.0 inside the Underwater case instead, as it has an identical audio front end to HydroMoth.

PUBLICATIONS

• TAC Lamont, L Chapuis, B Williams, S Dines, T Gridley, G Frainer, J Fearey, PB Maulana, ME Prasetya, J Jompa, DJ Smith, SD Simpson (2022). HydroMoth: Testing a prototype low-cost acoustic recorder for aquatic environments. Remote Sensing in Ecology and Conservation.

For any further enquiries related to this product, please contact us.

Documentation Source Code Forum