The X-301™ is versatile and has many applications. A few examples are listed below.

Road signs/lights - Use WebRelay-Dual to remotely turn on road signs during hazardous conditions or automatically turn on signs for scheduled events.
Shift change bells - Use WebRelay-Dual to automatically turn on bells/horns
for shift changes. If multiple bells are needed, WebRelay-Dual can be
“daisy-chained” with other ControlByWeb relays for simultaneous alerts.
Security - Use WebRelay-Dual to lock/unlock doors or at preset times.
An electric lock controlled by WebRelay-Dual can be used in
conjunction with a mechanical lock to allow access at certain times.
Persons with keys can access a building during the day while electric
lock is off but access is denied at night when WebRelay-Dual turns on
the electric lock. In addition, WebRelay-Dual can send email alerts
when the door is opened (anytime or just when the door is locked).
Gate Control - Use WebRelay-Dual to remotely control guard gates.
Vacant Living/Working Spaces - Make sure electronic devices are off when nobody is around. Save energy!
Ethernet I/O - WebRelay-Dual is a simple but powerful Ethernet I/O (or web I/O) device. The two relays and two inputs can be used for thousands of applications from event counters, to machine monitoring/control, to extending I/O from a PLC to another building and much more.
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