Smart 4G Controller 4 relays SM4-WLTE

Welcome to buy👇👇👇👇👇👇 Aliexpress link： European Amazon link： All the kits include DC12V power adapter and external antenna. Please note: that this equipment cannot be used in the United States, Canada, and Japan, please do not buy it. Australia and Mexico require customized SA versions. We are very sorry, due to regional usage reasons, the three countries of the United States, Canada, and Japan are not available. If your receiving country includes the above three countries, please do not place an order. Thank you for your understanding and support!! Mainly Features: 1. phone APP Remote Control, no distance limitation 2. 4G Data network Remote Control Via App 3. Dial Control first relay, SMS control 4 relays All the people who know SMS command and password can send SMS text to control the 4 relays output. For the call control, it supports 99 authorized call numbers Max. Note: When the device detects the ring call, the relay 1 will change status, so call control is free of charge. But the call can only control first relay ouput, invalid for other 3 relay output. 4. With 4 relay output (10A/30VDC, 10A/250VAC) 5. Support Temperature/Humidity Control (optional) 6. Scheduled/Timing Control 7. Industrial class design, Aluminum alloy material It can be controlled by two modes, SMS mode or 4G Data Network Mode. The default is SMS mode. If want 4G data network App control mode, please set APN first before use. Application:4 Channels support to control more...