The DS2A from Digitimer is a battery-powered, low-noise constant voltage stimulator designed for in vivo and in vitro electrophysiology experiments. It delivers monophasic voltage pulses with exceptional precision and stability, making it an ideal tool for stimulating neurons, peripheral nerves, or muscle fibers without introducing electrical noise into sensitive recordings.
Because it is fully isolated from its trigger source and ground, the DS2A minimizes interference and cross-talk - making it particularly well-suited for experiments involving simultaneous stimulation and recording.
The DS2A’s robust yet compact form factor makes it ideal for both benchtop and rack-mounted configurations. It fits neatly into the D121-11 19″ rack frame, which can accommodate up to two units (e.g., DS2A + DG2A, or dual DS2As).
While the DS2A and DS3 share a similar form factor, front panel layout, and triggering options, they differ fundamentally in the type of stimulation they deliver:
Choosing Between DS2A and DS3:
If your experiment requires a precise voltage waveform, such as when electrode impedance is known and stable, the DS2A is the ideal choice. However, if your priority is delivering a consistent current stimulus—especially where tissue or electrode impedance may vary—the DS3 Constant Current Stimulator is recommended.
Important Note: This product is for research applications only. Not a medical device as defined in Regulation (EU) 2017/745 (EU MDR), Swiss Medical Devices Ordinance (MedDO, SR 812.213), or FDA 21 CFR Part 860. Not designed or intended to be used for diagnosis, treatment of disease or any other medical purposes.