The SONOFF SV is a versatile 5-24V Wi-Fi relay module with the following key specifications:

• Power Supply: Supports 5-24V DC low voltage input.
• Relay Type: Dry contact output.
• Wi-Fi Standard: IEEE 802.11 b/g/n, operating on 2.4GHz.
• Main Chip: ESP8266 Wi-Fi SOC.
• Control Modes: Inching and self-locking modes.
• App Support: Compatible with the eWeLink app for iOS and Android.
• Remote Control: Allows turning devices on/off remotely via the app.
• LAN Control: Operates even without internet access.
• Timing Function: Set scheduled or countdown timers for automation.
• Smart Scene: Triggered by environmental conditions like temperature or humidity (requires compatible sensors).
• Voice Control: Works with Amazon Alexa, Google Assistant, and IFTTT.
• Applications: Ideal for low-voltage IoT applications, such as garage doors or access control.