This 2-Channel Reactor Relay Controller makes it easy for sensors to directly control external lights, motors, and other electrical devices based on environmental actions or conditions. Use external sensors to activate relays for a pre-set time period. A single external sensor is capable of controlling multiple relays or relay sequences based on your configuration. Use a computer to configure the Reactor. Once configured, Reactor works stand-alone, or in combination with a PC, depending on your application requirements. Reactor is compatible with many popular communication technologies, providing a upgrade path should your needs change in the future. Mechanical Relays are an ideal for choice for most users because of their long-life, low cost, and a versatile SPDT wiring configuration. Inductive loads such as Motors, Valves, Pumps, Solenoids, and Large Transformers (including Fluorescent Lighting) will require external induction suppression capacitors to reduce interference to acceptable levels.