Add Exception on on_data method ; appending of measurements; sending measurements
Add Exception on on_data method ; appending of measurements; sending measurements

jdgwartney/tsi-lab,boundary/tsi-lab,boundary/tsi-lab,boundary/tsi-lab,jdgwartney/tsi-lab,boundary/tsi-lab,jdgwartney/tsi-lab,jdgwartney/tsi-lab