Computer software to aid the user in the selection or diagnostic of humidifiers, actuators, valves, heaters or controls; Electric actuators with rotary and linear motion for air or fluid carrying valves and dampers for use in industrial, commercial or residential Heating Ventilating and Air Conditioning (HVAC) appliances; Electric actuated valves carrying fluid (water or water and glycol or steam) for use in industrial, commercial or residential HVAC applications as well as installed in equipment or appliances; Climate control systems consisting of digital thermostats for cooling and heating equipment, humidistats for controlling humidifiers and dehumidification equipment, enthalpy controllers to measure and control energy levels in HVAC 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 or any combination thereof, for use in industrial, commercial or residential HVAC applications; Humidity controls, namely, humidistats and humidity sensor with integrated digital and analog output circuitry used in automotive, appliance and light industrial applications to sense both relative humidity and temperature environmental conditions for use in industrial, commercial or residential HVAC applications; Air Velocity controls in the nature of static pressure controls comprised of integrated controllers or air velocity sensors or static pressure sensors locally or remotely controlled for use in residential and commercial variable Air volume HVAC air duct applications. Electrical transducers which convert any signal from a controller into other specific signals to activate and control humidifiers, actuators, valves, heaters and controls; Change-over switches comprised of a selector, manual positioner, signal selector, economizer, thermostats and humidistats for use in industrial, commercial or residential HVAC applications, namely, controlling energy levels, temperature and humidity

Humidifiers for use in HVAC or industrial, commercial or residential applications; Isothermal electric, gas, direct steam, steam to steam and liquid to steam humidifiers and adiabatic atomizing air and water and evaporative humidifiers for use in industrial, commercial or residential HVAC applications; Electric heaters for use in industrial, commercial or residential HVAC appliance units