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; Downloadable software for connecting, operating, and managing networked controls for smart watches used in body heating and body cooling, keeping time, and regulating and indicating temperature in the internet of things (IoT); Electric control devices for smart watches and wristbands that cool and heat the body; Protective body cooling gear, namely, active cooling smart watches to prevent injury due to overheating; Protective clothing with air-conditioning function by the integration of phase change cooling devices for cooling people, namely, vests for cooling surgeons, nurses and medical personnel; Smart watches; Smartwatch bands; Temperature controllers for warming and cooling medical and surgical liquids, equipment and instruments; Wearable activity trackers; Wearable computer peripherals