'The Helio Smart 4G Alarm System is a DIY, easy-to-use security system with no monthly fees and contracts required. It could connect to the Internet by LAN or WiFi, and u...展开
'The Helio Smart 4G Alarm System is a DIY, easy-to-use security system with no monthly fees and contracts required. It could connect to the Internet by LAN or WiFi, and use cellular SMS as backup communication.
The Helio Smart 4G app allows you to control the alarm system at any time, from anywhere…收起
