TUYA Smart WiFi Smoke Detector (SD4)

This modern wireless smoke detector is designed to detect smoke indoors. When smoke is detected, the device activates an audible alarm and sends a notification to your smartphone via the TUYA Smart app.

Thanks to its compact white housing and minimalist design, the detector blends seamlessly into modern interiors.

Advantages:

• WiFi connectivity: Operates via a 2.4 GHz home WiFi network without an additional hub.
• Remote notifications: Receive alerts on your smartphone when the detector is triggered.
• Loud 80 dB alarm: Audible warning when smoke is detected.
• Compatible with TUYA Smart / Smart Life: Control and monitor the device through the app for Android and iOS.
• Low power consumption: Energy-efficient battery operation.
• Compact design: Only 80 mm in diameter.
• Easy installation: Ceiling-mounted without the need to run electrical cables.
• Battery status monitoring: Low-battery notification. (Batteries are not included; 2 × AAA required.)

Technical Specifications:

• Device type: Wireless smoke detector
• Connectivity: WiFi 2.4 GHz
• Standard: WiFi IEEE 802.11 b/g/n
• App: TUYA Smart / Smart Life
• Power supply: 2 × AAA, 3V DC (LR03)
• Standby current: ≤15 μA
• Alarm current: ≤160 mA
• Low-battery warning threshold: ≤2.4 V
• Alarm volume: 80 dB at a distance of 1 m
• Stated detection area: Up to 20 m²
• Diameter: 80 mm
• Housing height: 38 mm
• Operating temperature: −10 to +50 °C
• Operating humidity: Up to 95% RH
• Installation method: Ceiling-mounted
• Color: White

Applications

Suitable for residential premises, apartments, private houses and offices. Installation in commercial premises depends on applicable fire safety regulations.

Important: An internet connection and correct app configuration are required for remote notifications. Whether the device can be used as a legally required fire alarm detector depends on whether its relevant certification has been confirmed.