The Digitimer DS7A and DS7AH constant current stimulators are suitable as general-purpose electrical nerve or muscle stimulators for humans and are FDA cleared for sale and use in the USA. The DS7A provides up to 100mA constant current (1 amp for the DS7AH) pulses of brief duration for both nerve and muscle tissue. Both stimulators boast a high 400V compliance voltage. The DS7A/AH commonly used in psychology, cognitive neuroscience and pain research among other numerous applications. These models help overcome difficulties in stimulating deep peripheral nerves, or large muscles such as a quadriceps with large electrodes attached. Other highlights of the DS7A/DS7AH · High voltage Constant Current stimulator · Digitimer’s “workhorse” stimulator · 0 – 100mA (1 amp for the DS7AH) · 0, 100, 200, 500, 1000, and 2000 microsecond pulse durations · On-board trigger or external TTL input trigger control · Bipolar · FDA cleared If you are interested in learning more about the DS7A please contact us at 954-334-1070 or email firstname.lastname@example.org. Digitimer North America is the exclusive distributor for this device in the USA, Canada, and Mexico.