All products

Compact loggers


MouseLog-16C is Deuteron’s lightest logger, with a board size of just 13 x 18mm and weighing only 1.68g (not including the battery). It records 16 channels of neural data, audible and ultrasonic audio data up to 80 kHz, and 9-axis motion sensor data. With a 1.5g battery (yielding 1.5 hours of recording time), it weighs just over 3g and is suitable for recordings in mice and similarly sized animals.


MouseLog-16B is a 16 channel logger that can be operated in either ‘Spike’ or ‘LFP’ mode. In ‘Spike’ mode it logs all 16 channels and digitizes each input at 31.25 kHz. In ‘LFP’ mode it operates at a lower power and logs any 8 of the 16 inputs with a 4kHz sampling rate. It weighs 1.9g (without battery) and with a 1.5g battery has a 2 hour recording time in ‘Spike’ mode and an 8 hour recording time in ‘LFP’ mode.


MouseLog-16V is a vertically mounted configuration of MouseLog-16B.

Modular Loggers

RatLog-128 is a modular logger system, meaning it has separate boards for digital processing and analog amplification making customization for a given experiment much easier. A single processor board can be connected to one, two, or four headstage amplifier boards yielding 32, 64 or 128 channels, respectively. Headstage amplifier boards can be connected to the processor with an ultra-flexible short cable or plugged directly into the processor. Most headstages can be stacked, that is, connected to another headstage to provide multiples of 32 channels.

Customized headstages can easily be made to interface with the user’s electrode assembly. At present Deuteron offers ten different compatible headstages with a variety of orientations, options, and connectors.

RatLog-128 with two stacked headstages
RatLog-128 with two headstages connected with ultra-flexible short cable
Example of headstages stacked 4-high

Single-board loggers


SpikeLog-64 is a 64 channel single-board neural logger that also features ultrasonic audio and motion sensor logging. At a size of just 20 x 29mm and a weight of only 3.3g (not including battery), this board is a perfect, lightweight solution for recording neural signals in small animals such as rats and marmosets, among others. It’s on-board microphone is capable of recording animal calls up to 80kHz, and its 9-axis motion sensor records accelerometer, gyroscope and magnetometer data. For specifications, see here.


SpikeLog-128 is a single-board 128 channel logger that includes a 9-axis motion sensor. It is only 30 x 30mm and weighs just 4.4g, making it suitable for recording neural signals in animals as small as rats or marmosets. The neural inputs are connected via a pair of 70-pin molex connectors. In general, it will connect to the electrode assembly via an adaptor board. For specifications see here.

Other Loggers

Audio Logger AL2

Deuteron’s audio logger AL2 is made for recording sounds that animals hear, and sounds that animals make. Although it does not record neural signals, it is a member of Deuteron’s family of loggers for neuroscience experiments in freely moving animals. It is operated with the same radio transceivers as the neural loggers and is operated with the same software. It is not much bigger than the MicroSD memory card that it holds and weighs about 1 gram. It can record audible and ultrasonic sounds, and has a frequency response that extends to 80kHz. The sampling rate is switchable between 50kHz, 100kHz and 200kHz. It can record sounds from either its on-board microphone or an external microphone or vibration transducer.


Audio Logger AL2 Specifications

Sampling rates50kHz, 100kHz or 200kHz
Upper frequency limitCustomizable, can be switched between 3 settings
Lower frequency limitCustomizable, can be switched between 2 settings
Resolution16 bit
Amplification controlAmplification ratio of 1,2,4 or 8
High frequency limit rangeUp to 80kHz
Battery requirementLithium polymer single cell
Recording time3 hours for a 2 gram battery
Recorded data formatUncompressed raw data
Dimensions14.5 x 19.5 mm

This logger is best for experiments where the sound of the animal, but not neural activity, needs to be recorded. If you want to record both sounds and neural signals at the same time, it is much better to use a neural logger that also records sounds. This is possible with the MouseLog-16C logger and the SpikeLog-64 single board logger.