Experience seamless control of your home devices with the Smart WiFi Switch SONOFF. Perfect for managing multiple devices, it offers user-friendly remote control and exceptional versatility.

Easy Access to Three Operating Modes

Unlike its predecessor, the 4CHR2, this switch provides three modes: Self-locking (keep devices on until manually turned off), Interlock (turning on one device automatically turns off another), and Inching (devices turn off after a set time), all directly accessible via the smartphone app.

Control Four Devices Separately

Switch on and off four connected light sources instantly with the standalone operation mode.

Reliable Assistant

Manage devices remotely using the free eWeLink app on iOS and Android. Benefit from voice control compatibility with Amazon Alexa, Echo, Echo Dot, Amazon Tap, Google Assistant, Google Home, Google Nest, and IFTTT.

Prioritized Safety

The durable casing is made from high-quality, fire-resistant PC material, providing excellent protection when using connected devices.

Universal Compatibility

This relay is compatible with various market devices, ideal for lighting, household appliances, fans, and more.

Technical Specifications

• Model: 4CHR3
• Voltage Range: 100-240 V AC 50/60 Hz
• Max. Load: 10 A/2200W per line, 16A/3500W
• WiFi: 2.4 GHz, 802.11 b/g/n
• Safety Mechanism: WPA/WPA2
• Material: PC V0
• Dimensions: 145 x 90 x 34 mm
• Operating Temperature: -10 °C ~ 40 °C