RAMAX W IoT service is available through wifi router (2.4GHz 802.11b / 802.11g channel support) regardless of carrier.You can use the service using RAMAX and IoT products.-Service is available only for IoT devices provided by Ramax.-After signing up, you can use the service.-You can check and control the status of devices installed in your home remotely from outside by using the RAMAX W IoT app and devices.main function1.RAMAX W IoT Door Lock Function -Open / lock remote (app) control -Check status information (door status / temperature / battery level) -Real time push notification -Set period password (password available for set period) -Invite a family member-Device sharing possible (Invited users are limited in part of the app control) -Door open-close history inquiry available -High temperature detection, battery replacement, emergency open notification2.RAMAX W IoT Gas Circuit Breaker Function -Valve lock by remote (app) (Opening function is limited.) -Check valve status information (gas timer valve status / temperature / battery remaining) -Real time push notification -Invite family members-Share device -Gas valve open-lock history inquiry possible -High temperature detection, battery replacement, valve incomplete switch -Smoke detection valve lock function (only models that support smoke detection function)3.RAMAX W IoT Open Sensor -Open / close status change notification remote (app) setting function -Status information check (detection sensor open-closed / temperature / battery remaining) -Real time push notification -Invite a family member-Device sharing possible (Invited users are limited in part of the app control) -Open / close history inquiry of sensor -High temperature detection, battery replacement, emergency detection notification4.RAMAX W IoT Smart Plug -Plug on / off remote (app) control -Check status information (smart plug on-off status / temperature / power level W) -Real time push notification -Invite a family member-Device sharing possible (Invited users are limited in part of the app control) -Plug On-Off History Inquiry -High temperature detection and over current detection off function -Schedule setting function (20 schedules can be set for each day / time)5.RAMAX W IoT Smart Light Switch -Light switch on / off remote (app) control function (1 ~ 3 ball) -Check the status information (light switch on-off status / temperature / power W display) -Real time push notification -Invite a family member-Device sharing possible (Invited users are limited in part of the app control) -Light switch on-off history inquiry possible -High temperature detection and over current detection off function -Schedule setting function (20 schedules can be set for each day / time)