900MHz Relay Control at a Glance...
- 24 Relay Installed on a Circuit Board
- Expandable to 256 Relays - Onboard 900MHz Wireless Interface
- Reliable XBee-PRO 900HP RF Module
- Requires 900MHz Modem
- Modem Mounts as a Virtual COM Port - Industry Leading ProXR Command Set
- Program in Almost any Language
- Send Specific Commands to Control Relays
- Control Any or All Relays
- Toggle, Flash and Timing Commands - ProXR AD8 Command Set
- Read 0 to 5 Volt Sensors
- Monitor External Sensors or Contact Closure
- Relay Activator, Inputs Directly Control Relays
Selecting the Proper Amperage
For more information on selecting a board with the correct relay amperage for your application see Choosing a Proper Amperage.
Simple Wireless Communication
Boards on this page are equipped with an XBee-PRO 900HP RF module that adds 900 MHz wireless communications to the board. The board uses a modem connected to the USB port of your computer to wirelessly communicate to the board. The modem mounts as a COM port on your PC, send your commands to the COM port and the modem wirelessly sends the command to the board. That's all there is to it!!!Selecting a 900MHz Relay Control Series
The 24-Channel boards are available in the ProXR version. The boards have firmware installed and accept the ProXR command set, the industry leading command set for controlling relays. All ProXR boards are expandable to 256 relays. When you find your board click on the Full Description link to view full specs, watch setup videos, download software and purchase.
