The wireless relay board is designed for controlling electrical equipment. This Card enables users to remotely switch on, switch off, or reset a variety of devices. The PC301W 4-port relay board allows users to easily control their equipment by simply connecting to Wi-Fi. One of the key applications of the wireless relay board (relay card) is remote lighting control—users can turn lights on or off either remotely or using the onboard push-button switches.
Another application of the online wireless relay board is its use in alarm systems—by connecting the device to a siren, it can notify users in case of any malfunction. In server rooms, the wireless relay card can be used alongside temperature and humidity monitoring to enable intelligent control and automation of server rooms and data centers, while also notifying data center managers of any incidents. Additionally, the relay board’s ports can be configured as four independent timer channels.
The wireless relay board (relay card) is designed to perform control commands (on/off/reset) either remotely or via the push-button switches on the device. By connecting the wireless relay board to WiFi, you can control electrical devices such as network equipment, lighting systems, sirens, police lights, fans, and more. Additionally, when the relay board is connected to monitoring devices like the chemical gas measurement device and the online temperature and humidity measurement device, you can manage these parameters as well. The wireless relay board is equipped with four relays, enabling you to control up to four electrical devices. Moreover, the device ports can also be used as timers.
One of the applications of the relay board is in poultry farming houses. With this device, you can control equipment inside the house—such as fans, heaters, inlets, and more. The relay board, together with devices like the pressure sensor, temperature and humidity measurement, carbon dioxide measurement, and other monitoring systems, facilitates the implementation of intelligent poultry farming automation. If you need more ports or LAN cable connectivity, the 8-port relay board is recommended. For more relays, temperature and humidity sensors, and input ports for automation, the UIO301G multifunctional network expansion module is suggested. This networked board is equipped with a SIM card module, supports the Modbus protocol, and can be connected to PLCs.
The Internet of Things (IoT) refers to a network of physical objects—billions of devices worldwide—that are now connected to the internet or other communication networks, enabling them to collect and share data. IoT is rapidly gaining applications across a variety of industries and businesses, including smart cities, smart homes, healthcare and medical systems, industrial automation, agriculture, and more. An IoT system collects and transmits data in real-time.
This module is a smart 4-channel relay board with remote control capabilities via Wi-Fi and the Internet of Things (IoT). It is highly suitable for the automation of 12V equipment in smart homes and industrial applications.
The PC301W features 4 independent relay outputs, providing a 12V output with a 5A current capacity per channel. Additionally, each relay output is equipped with an independent push-button switch for manual control.
Yes, alongside Wi-Fi and application-based control, there is a push-button switch on each relay output for manual operation. This ensures you can control the outputs locally, even if the network connection is lost.
The device connects seamlessly to the internet via a standard Wi-Fi network, eliminating the need for network cables and allowing you to control the relays from anywhere.
Absolutely. This smart relay board fully supports Internet of Things (IoT) protocols and MQTT, making it perfectly compatible with cloud servers and smart home management systems.
Yes, the physical design and enclosure of this board allow for easy and safe mounting on a standard DIN rail inside an electrical control panel.
The PC301W is powered by a standard 220V AC power supply and features a robust, isolated circuit design to provide safe 12V outputs.
Common applications include the smart control of lighting, water pumps, solenoid valves, ventilation systems, parking doors, diverse 12V electrical equipment, as well as building and industrial automation.
The board can be controlled dynamically via a mobile application, a dedicated web panel, the MQTT protocol, and manually using the individual push-button switches.
Yes, with its comprehensive MQTT support and IoT functionality, you can easily define complex automation scenarios and integrate the device with other smart home or industrial equipment.
Yes, the real-time operational status of each relay can be monitored and controlled online using the mobile application and the web-based panel.
For purchasing inquiries or technical consultation, you can contact the BRNIT engineering experts. The device comes with a 1-year hardware warranty and 5 years of dedicated after-sales service.
