![enter image description here][1] **DESCRIPTION** GSR stands for galvanic skin response, is a method of measuring the electrical conductance of the skin. Strong emotion can cause stimulus to your sympathetic nervous system, resulting more sweat being secreted by the sweat glands. **Grove – GSR** allows you to spot such strong emotions by simple attaching two electrodes to two fingers on one hand. It an interesting gear to create emotion related projects like sleep quality monitor. ![enter image description here][2] Note: This device is not medical device. **KEY FEATURES** - Detects conductance of skin - Finger Straps for electrodes **TECHNICAL SPECIFICATIONS** - Input Voltage: 5V/3.3V - Sensitivity adjustable via a potentiometer **DOCUMENTS** For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product. Please visit our [wiki][3] page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum. For more detail, please visit: https://www.seeedstudio.com/item_detail.html?p_id=1614 [1]: /editor/20160708/577f1ce036a8f.png [2]: /editor/20160708/577f1d040e1aa.png [3]: http://www.seeedstudio.com/wiki/Grove_-_GSR_Sensor