automatic and manual controls which monitor, adjust, and regulate a building's heating, air conditioning, and ventilation systems; electronic, pneumatic, and steam operated metal valves for control of fluids; electronic time controllers for minimization of energy consumption and for maximization of efficiency of heat pumps; automatic controls of security access, fire management, and lighting of buildings; breathing apparatus, namely gas and filter masks; respiratory protection apparatus, namely gas masks, and face shields; safety equipment, namely hard hats, helmets, safety eyewear, ear protectors, chemical-resistant clothing, covers for protection of linemen from high voltage lines; controllers and computers for recording industrial process variables, namely flow of materials, temperature, pressure and liquid level, electrical forces, and gas analysis, for factory automation; thermostats, thermocouplers, thermographs, indicating and recording meters and transmitters for management, monitoring and measuring the industrial process variables and for communicating with controllers and computer networks; thermometers, psychrographs, psychrometers, pyrographs, pyrometers, tachometers, tachographs, planimeters, revolution counters, and renewable dials for a chart recorder which monitors temperature and pressure, namely charts