The Relay Sentinel is the fastest, easiest, least expensive, and most reliable way to remotely control and/or monitored equipment over any IP network including private networks, IP-based industrial control networks, and the Internet. Users can operate the product using a web browser or web-enabled mobile device, while email notification may be configured to alert up to four recipients when alarms are detected. The user may also enable a sound effect to play when an alarm is generated. Logging of relay status, along with the site ID may be emailed from once an hour to once a day. 
 
The Relay Sentinel has three low-signal SPDT relays that can individually switch up to 1 Amp at 28V. Each relay can be turned on, off, pulsed or timed latched using the built in web pages.

Main Features:
•Logging of relay status, along with the site ID may be emailed in time spans from once an hour to once a day.
•Three-SPDT 1 amp relays.
•Plug-in euro-block screw terminals for all status inputs.
•Four activity LED indicators.
•Rear panel RJ-45, 10/100base-T LAN/Ethernet interface.
•Fully RFI proofed.
•Surge protected power supply. Domestic supply provided.
•Four units may be mounted on one RA-1 1-RU shelf.