📶 WK4 WiFi Remote Control Switch

Bluetooth + WiFi Dual-Mode Wireless Relay Module 12V/24V

🔹 The WK4 is a smart 2-channel relay controller designed for wireless remote switching of electrical devices via WiFi and Bluetooth. The dual-mode communication allows fast Bluetooth pairing and convenient remote access through a mobile application from anywhere in the world.

Ideal for smart home automation, lighting control, gate automation, HVAC systems, pumps, security systems and industrial automation projects.

⭐ Key Features

✅ Dual-mode WiFi + Bluetooth communication

✅ Remote control via smartphone app

✅ 2 independent relay outputs

✅ Android and iOS compatible

✅ Timer and scheduling functions

✅ Self-locking, Momentary and Interlock modes

✅ Bluetooth local control without Internet

✅ Easy setup via Bluetooth pairing

⚙ Technical Specifications

Parameter	Value
Model	WK4A
Channels	2
Supply Voltage	DC 7–24V
Nominal Voltage	12V / 24V DC
Standby Power	Approx. 0.4W
Operating Power	0.4 + (0.5 × active relays) W
Wireless Communication	WiFi 2.4GHz + Bluetooth
Mobile OS	Android / iOS
App	Easy Weilian / EasyWeLink
Relay Contacts	NO / NC / COM
AC Load Rating	250VAC, 5A
DC Load Rating	30VDC, 7A
Maximum Resistive Load	Up to 1000W
WiFi Frequency	2.4GHz
5GHz Support	Not supported
Working Modes	Self-lock, Momentary, Interlock, Timer, Delay

📱 Smart Functions

• Real-time ON/OFF control
• Remote access via Internet
• Automation scheduling
• Countdown timer
• Delay switching
• Device sharing
• Bluetooth quick pairing

🏠 Applications

• Smart home systems
• Lighting control
• Garage doors
• Water pumps
• Ventilation systems
• Electric heaters
• Security systems
• Industrial automation
• Remote equipment control