Air quality measurement apparatus, namely, particle counters; Alarm monitoring systems; Biometric fingerprint door locks; Climate control digital thermostats; Climate control systems consisting of digital thermostats for cooling equipment, and a programmable logic controller (PLC) with input and output features for temperature and humidity, which works with a remote digital read out controller; Climate control systems consisting of digital thermostats, air conditioning, heating, ventilation and drying control devices; Home automation hubs comprised of voice-activated speakers, computer hardware, and recorded software for operating internet-enabled and connected lighting apparatus and home security alarms; Home automation hubs using artificial intelligence comprised of voice-activated speakers, computer hardware, and downloadable software for operating internet-enabled and connected lighting apparatus and home security alarms; LCD panels; Remote controls for air-conditioning apparatus; Security products, namely, entry door systems comprising touch pads and security doors; Temperature switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems; Thermostats; Video baby monitors; Voltage surge protectors