ESP8266 ESP-01 4 Channel 12V WiFi Relay Module 12V IOT Wireless Smart Home Device WiFi Relay Internet of Things ESP-01 Module Board For Phone APP Remote Control

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All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.

Onboard High Performance Microprocessor and ESP-01 WIFI Module
The module has two working modes: mode 1: the mobile phone is directly mounted on the WIFI module; Mode 2: The mobile phone and the WIFI module are mounted on the router at the same time (additional function: it can also be used as a USB relay when the ESP-01 is unplugged)
Transmission distance: (1) In open environment, the maximum stable transmission distance when the mobile phone is mounted on the WIFI module is 100m;(2) When the WIFI module and the mobile phone are mounted on the router at the same time, the transmission distance depends on the signal strength of the router.
Onboard 12V,10A/250V AC 10A/30V DC relay, can be continuously drawn in 100,000 times, with diode laxative protection, short response time
Onboard mode selection and real-time working status indicator; with 4 optocoupler isolation, strong anti-interference ability; reserved UART debugging interface and MCU program download interface

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