4-Channel GSM SMS Relay Controller with App Support – Wireless Remote Switch for Gate, Door, and Home Automation
Control your gate, door, or appliances remotely with this 4-channel GSM SMS relay controller. Use SMS, calls, or app to manage devices from anywhere. Shop now!
Key points
- Remote control via SMS, phone call, or mobile app
- 4 independent relay channels for multiple devices
- Reliable GSM connectivity with standard SIM card support
- Ideal for gate, door, and appliance automation
- Easy installation and user-friendly operation View product presentation
Color: KL4-GSM-DT




France
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Product presentation
Take Control Anywhere – Automate Your World with Just a Text or Call!
This advanced 4-channel GSM SMS relay controller enables remote control of electrical devices via SMS, phone calls, or a dedicated mobile app. Built with durable plastic housing and reliable electronic components, it measures approximately 120 x 80 x 30 mm and is designed for indoor use in residential or commercial settings. Ideal for automating gates, doors, lights, pumps, and other appliances, this wireless switch offers convenient access from anywhere with cellular coverage. Its user-friendly interface, secure operation, and compatibility with standard SIM cards make it a practical solution for smart home and building automation systems.
| Brand Name BetauSec |
| Origin Mainland China |
| Whether or Not 50Vac or 75Vdc or Higher Power Supply No |
| High-concerned chemical None |
| Certification CE |
| Model Number KL4-GSM-2G |









