The Broadcast Tools Site Sentinel 4 G2 is a robust, full-featured; web-enabled four channel remote control featuring a desktop/mobile browser compatible web interface (HTML5.) The system is equipped with four metering inputs (0 to +10 VDC), four optically-isolated status (logic) inputs, four programmable SPDT relay outputs (ON, OFF and pulsed operation), one external temperature probe input, stereo silence sensor, and power failure input. Includes built-in support for email, and SNMP.The Site Sentinel 4 G2 provides a cost-effective one third-rack solution for web-based site remote control. The Site Sentinel 4 G2 is designed from a users point of view, so all of the basic functionality you need is included to control your site equipment, while including the accessories other manufacturers consider optional.Each analog (metering), status/logic, stereo silence sensor, external temperature sensor (probe optional), power input (power fail), along with all relays can be controlled and/or monitored 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 EIGHT recipients when alarms are detected.The user may also enable a sound effect to play on the monitoring PC when an alarm is generated. Logging of system status, along with the site ID may be emailed in time spans from once an hour to once a day. SNMP and SMTP username and passwords are also supported.The Site Sentinel 4 G2 is also equipped with a power controller relay port. By pairing this feature with an optional external AC power control unit (such as the Mid-Atlantic RLM-15-1CA, RLM-20-1C or RLM30-L530-1) remote rebooting of equipment is possible.Main Features:HTML5 web interface.SMTP (Email) and email-to-SMS.SNMP GET/SET and traps.Four SPDT relay outputs (pulse, on, or off.)Four metering inputs (0 to +10 VDC.)Four opto-isolated inputs, dry or wet signals (3.3-24 VDC, or 25-48 VDC*)Stereo Silence SensorPlug-in euroblock screw terminals for metering, status, control relays, and stereo silence sensor.1/8 T/R/S mini-jack for the optional external temperature sensor.NTP date/time sync.100-event program scheduler for relay control, DST correction, and alarm muting.Fully RFI proofed.Surge protected internal power supply, an 9 VDC desktop universal switching power supply with domestic connector supplied.Dual (redundant) power input jacks with power failure monitoring.**Up to three units may be mounted on the optional RA-1 rack shelf. Desktop and wall mounting are also possible.Product Applications- Broadcast transmitter remote control- PPM Monitoring and alarm logging- Remote site monitoring and control- Stereo audio silence monitoring- Web-enabled back-up remote control system