<p>Convenient remote management: Equipment can be controlled without on-site presence, reducing labor and travel costs. Enhanced security: Only authorized phone numbers or users can operate the relay, improving access security. Easy to integrate: The compact design and simple wiring allow for quick installation with existing doors, doors, or electrical systems. Stable signal: 4G/LTE connectivity provides better coverage and faster response than older devices that only support 2G. </p> <p>Features: This remote power switch is a single channel relay controller (model SM1-WLTE) designed for reliable wireless control of electrical equipment. It supports SMS, phone, and mobile application control, making it an ideal choice for remote operation of motors, locks, doors, pumps, and other appliances. Suitable for mainstream 4G/LTE and GSM networks, achieving stable remote communication and control. 1-channel relay output: Integrated 1CH relay, used to switch power to individual devices such as motors, door locks, or door openers. Multiple control methods: Supports SMS commands, call recognition (ring on), and application control, with flexible operation. Remote power switching: remotely turn on or off devices, reset devices, or control access to systems anytime, anywhere. Motor and lock control: suitable for electric locks, door motors, garage doors, fences, and other access control systems. Color: As Shown Material: Aluminum Alloy Specification: EC </p> <p>Package Contents: 1 * switch controller </p> <p>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. </p>