Sensor Controlled Relays
Read Sensors & Contact Closures with Built-In A/D Conversion
Once Configured - No Computer Needed!
Intelligent Switching without a Computer is the foundation of the Reactor Series relay controllers. The Reactor Series will help you activate a switch when it gets dark outside. If the door has been left open, it will close automatically. When the temperature falls, another switch is triggered. If motion is detected, a light will turn on for a preset time. When soil in the ground is too dry, a switch will be activated that can save your crops, save your energy, save you a trip to the field, and save you money.
This Reactor controller connects to the RS-232 port of your computer and requires a 12VDC Power Supply. Once powered up, the relay controller waits for a command. A command consists of a few bytes of data. Usually between 2 and 6 bytes. Once the command has been received, the controller processes the command, and sends you back ASCII character code 85 to signal the completion of your command.
Read More About RS-232 Communications
![]() |
![]() |
![]() |
ZRS-A Wire It Up |
ZRS-B Plug It In |
ZRS-AB Both! |
Choose the connection that fits your needs. The ZRS-A connection is recommended for applications where hard wiring directly to the board is needed. ZRS-B has the fill 9-Pin RS-232 connector on the board. The ZRS-AB Has the fill 9-Pin connector but is is located off the board for applications where the board may be place inside an enclosure an the RS-232 connector needs to reach to the side of the enclosure. You can choose one of these connection options at checkout. |