License
Pulse Pal is an open source hardware device.
Its software, firmware and hardware design files were released into the public domain on the terms of the GNU General Public License v3.0.
The text of the license is available here: http://www.gnu.org/copyleft/gpl.html
You must read the GNU GPL v3.0 License, and agree to its terms before using Pulse Pal.
In brief, you may build and modify Pulse Pal's hardware and software to suit your needs, and even release your own derivative product, so long as that product's software and hardware remains fully open source, and made freely available to the public under GNU v3.0. Your derivative work must include a statement detailing your changes to the original code and CAD.
Liability
Use of Pulse Pal is entirely at your own risk. Its designer is not liable to you for ANY damages you may incur due to your use of Pulse Pal's software or hardware.
The parts of GPL 3.0 concerning Liability are reproduced here for your convenience:
Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE SOFTWARE OR HARDWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE AND HARDWARE “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE AND HARDWARE IS WITH YOU. SHOULD THE SOFTWARE OR HARDWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE SOFTWARE AND HARDWARE AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE AND HARDWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
We do not approve or recommend the use of Pulse Pal in critical life-support or medical systems, for direct stimulation of human subjects, or for any use or application in which the failure of a single component could create a situation in which property damage, personal injury or death is likely to occur. If you do, you absolve the designers of Pulse Pal software and hardware of all damages, costs, and expenses that may be incurred, including without limitation, attorney fees and costs related to any lawsuit or threatened lawsuit arising out of the use of the device in unauthorized applications.
Your use of our website, products and services is at your risk. The information, materials and services provided on or through this website are provided "as is" without any warranties of any kind including warranties of merchantability, fitness for a particular purpose, or non-infringement of intellectual property. We do not warrant the accuracy or completeness of the information, materials or services provided on this website. The foregoing exclusions of implied warranties do not apply to the extent prohibited by law. Please refer to your local laws for any such prohibitions.
Before you use Pulse Pal in experiments with valuable data collection, we recommend you conduct an expert review our open source software and hardware designs, to ensure that the risk of design failure is acceptable to you in your intended application. By using Pulse Pal, you agree that its designer shall not be liable to you for any damages, costs or legal expenses incurred by you due to loss of data, as a result of failure or malfunction of the device.