OHS is open Arduino based burglar alarm and automation platform. It can work as new alarm gateway, or it can replace your old alarm panel. OHS can use any wired 12V sensor, PIR, smoke or reed switch. It has Web interface that is used to set it up. OHS has GSM modem that is able to send SMS or page you. It has radio interface for environmental sensors. OHS is self-contained, it does not need any cloud service, only optional SMTP server for emails, or MQTT to publish collected sensor data.
Last week I put some effort into creating fresh new look with CSS. I was so happy with the look, that I have rewrote all the UI into it. Look at the screen capture below, it is best viewed in HD. Just remember that the web service is provided by the 8bit ATmega MCU, still amazing. I'm not showing the Key and Phone parts, as this is unit is already guarding my property and the iButtons codes and phone numbers are listed there.