1. Internet of Things spending forecast https://www.businesswire.com/news/home/20170104005270/en/Internet-Spending-Forecast-Grow-17.9-2016-Led
2. Gartner says 8.4 billion connected Things https://www.gartner.com/newsroom/id/3598917 January 4, 2018
3. National Technical Systems (NTS) Completes ZigBee Smart Energy Certification Testing for SimpleHomeNet Appliance https://www.nts.com/ntsblog/national-technical-systems-nts-completes-zigbee-smart-energy-certification-testing-for-simplehomenet-appliance/ January 3, 2018
4. NTS Selected by PG&E as first provider of ZigBee HAN device validation testing https://www.nts.com/ntsblog/nts_pge_selection/ January 3, 2018
5. Smart home testing: Allion creates a new smart home test environment that simulates real life to provide innovative test services http://www.technical-direct.com/en/smart-home-testing-allion-creates-a-new-smart-home-test environment-to-simulate-real-life-to-provide-innovative-test-services/ January 3, 2018