{"product_id":"self-locking-interlock-remote-control-1-way-relay-module-2-4g-wifi-smart-switch-7-32v-usb-pcb-antenna-for-home-automation-ewelink-compatible","title":"Self-Locking Interlock Remote Control 1 Way Relay Module 2.4G WiFi Smart Switch 7-32V USB PCB Antenna for Home Automation Ewelink Compatible","description":"\u003ch1\u003eSelf-Locking Interlock Remote Control 1 Way Relay Module with 2.4G WiFi for Smart Home Systems\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Self-locking interlock 1 way relay module with 2.4G WiFi, USB interface, 7-32V input, PCB onboard antenna\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/952\/2025-09-28\/original-image\/22a0ae2b-3ebf-420c-aff5-f7852008713e.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis 1-channel relay module gives you remote switching capability over a single circuit using a 2.4G WiFi connection. Its self-locking interlock mode holds the relay in its last commanded position, making it suitable for applications where steady on or off state is required. The module accepts a wide DC input voltage range from 7V to 32V, and communicates via a USB interface, simplifying integration into existing setups. With onboard PCB antenna and support for the Ewelink platform, it offers a practical wireless control solution for home automation or small-scale industrial use.\u003c\/p\u003e\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Self-locking interlock 1 way relay module with 2.4G WiFi, USB interface, 7-32V input, PCB onboard antenna\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/952\/2025-09-28\/original-image\/611a1f1f-5343-4950-a99e-1a4db0f862ea.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe module is built around a single-channel relay design with a PCB onboard antenna for 2.4G signal transmission. Its self-locking interlock logic ensures the relay stays put after receiving a command, avoiding unintended toggling.\u003c\/p\u003e\u003ch3\u003eRelay Mode and Operation\u003c\/h3\u003e\u003cp\u003eThe self-locking interlock mode keeps the relay in its last state—either on or off—until a new command is sent. This is useful for controlling lights, pumps, or other devices that should remain in a fixed condition without constant signal refresh.\u003c\/p\u003e\u003ch3\u003e2.4G WiFi Connectivity\u003c\/h3\u003e\u003cp\u003eThe module uses the 2.4G WiFi frequency band to communicate with your network. It works with the Ewelink app for remote control via smartphone, voice assistants, or automation routines, as long as your WiFi network operates on 2.4G.\u003c\/p\u003e\u003ch3\u003eUSB Interface and Voltage Range\u003c\/h3\u003e\u003cp\u003eA USB port handles both power and data connection, accepting DC input between 7V and 32V. This wide voltage tolerance allows the module to work with many common power supplies, from small battery systems to regulated adapters.\u003c\/p\u003e\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Self-locking interlock 1 way relay module with 2.4G WiFi, USB interface, 7-32V input, PCB onboard antenna\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/952\/2025-09-28\/original-image\/719e3c0a-1864-4ab9-9fb6-4f98e4f6ab27.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThis relay module fits into scenarios where remote switching of one circuit is needed. Its small size and lightweight build make it easy to mount in enclosures or near devices.\u003c\/p\u003e\u003ch3\u003eHome Automation\u003c\/h3\u003e\u003cp\u003eUse the module to control a single light, fan, or appliance remotely via the Ewelink app. The self-locking mode ensures the device stays on or off as set, even if WiFi drops briefly, providing consistent control.\u003c\/p\u003e\u003ch3\u003eIndustrial or DIY Projects\u003c\/h3\u003e\u003cp\u003eIn workshops or small automation projects, the relay can switch a pump, valve, or motor within the 7-32V power range. The USB interface simplifies wiring and integration with microcontrollers or existing control systems.\u003c\/p\u003e\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Self-locking interlock 1 way relay module with 2.4G WiFi, USB interface, 7-32V input, PCB onboard antenna\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/952\/2025-09-28\/original-image\/ab91bd40-71c8-4966-929c-14bb3d5c6c30.webp\"\u003e\u003c\/div\u003e\u003cp\u003eThe module offers straightforward wireless control without needing complex wiring. Its self-locking design reduces the need for constant commands, and the compact size saves space.\u003c\/p\u003e\u003ch3\u003eEasy Integration\u003c\/h3\u003e\u003cp\u003eWith a USB interface and Ewelink app compatibility, setting up the relay is simple—just connect power, pair over 2.4G WiFi, and start commanding. No additional hubs are required beyond your existing WiFi router.\u003c\/p\u003e\u003ch3\u003eReliable State Retention\u003c\/h3\u003e\u003cp\u003eThe interlock lock feature means the relay remembers its last state, which is valuable for devices that must stay on or off without interruption. This reduces maintenance and ensures predictable operation in automated routines.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Self-locking interlock 1 way relay module with 2.4G WiFi, USB interface, 7-32V input, PCB onboard antenna\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/952\/2025-09-28\/original-image\/b048f9c9-e5f4-4e7a-8bc0-8421b2ff202c.webp\"\u003e\u003c\/div\u003e","brand":"huc4ji-en","offers":[{"title":"A","offer_id":57673349857611,"sku":"CJPB164533901AZ","price":21.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1042\/6086\/2283\/files\/ab91bd40-71c8-4966-929c-14bb3d5c6c30.webp?v=1782353939","url":"https:\/\/huc4ji-en.myshopify.com\/products\/self-locking-interlock-remote-control-1-way-relay-module-2-4g-wifi-smart-switch-7-32v-usb-pcb-antenna-for-home-automation-ewelink-compatible","provider":"WanderGoods","version":"1.0","type":"link"}