Thermocouples; A mesh network of temperature probes which measures the internal temperatures of compost piles and wirelessly transmits the temperature data to a computer; 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; Components for electrical mains in the nature of electric wires, connectors, circuit breakers, cables; Electric control devices for heating and energy management; Electric heat sequencers; Electric wires and cables; Electrical cables; Electrical resistance heating wires and electrical controllers therefor; Electrical wires; Portable electronic recorder for measuring and recording multiple voltage, current and thermocouple readings from various transducers; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Temperature controller for controlling temperature of medical instruments and containers for medical fluids; Temperature sensors; Temperature sensors used in the medical field to measure temperature of medical solutions; Temperature switches and sensors for monitoring, controlling, and switching hydraulic or pneumatic systems