S4A Tuya-SD03 Wi-Fi Smoke Detector with Replaceable Lithium Battery
Tuya-SD03, Optical Smoke Chamber, DC 3V Lithium, 85dB Siren, Tuya Wi-Fi, 3-Year Battery, Dustproof
The S4A Tuya-SD03 is an extended-endurance smart Wi-Fi smoke detector powered by replaceable DC 3V lithium batteries, featuring advanced labyrinth optics, 85dB alarm siren, and ultra-low power Tuya Wi-Fi chipset.
Product Overview
Equipped with next-generation low-power wireless micro-architecture, the Tuya-SD03 offers multi-year battery operation with easily replaceable standard cells. Its engineered dust-proof optical chamber minimizes false triggers caused by cooking vapor or insect intrusion, while providing instant Tuya cloud notification upon fire hazard detection.
Why Buy This Product
Long-Life Replaceable Cells
Runs for years on standard user-replaceable batteries without requiring wired electrical work.
Dust & Bug Shield
Precision intake mesh keeps insects and dust out of the optical chamber to prevent nuisance alarms.
Automated Scene Linkage
Can automatically trigger smart sirens or unlock emergency smart doors when fire is detected.
Best for These Applications
Vacation Homes & Cabins
Guards remote properties where long battery lifespan and dependable cloud warnings are essential.
Commercial Office Suites
Rapid ceiling retrofit without running conduit or trenching drywall for power cables.
Key Advantages
- Extended 3-Year Standby:Engineered with an ultra-low quiescent current of less than 10uA for multi-year protection.
- Smart Emergency Actions:Can be linked via Tuya Smart scenes to turn on emergency corridor lights during an alarm event.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 0.14 |
| Shipping Weight | 0.2 |
| Sensor Category | smoke-detector |
| Detection Technology | Photoelectric Infrared Chamber |
| Detection Coverage Angle | 360° Ceiling Mount |
| Detection Distance | Up to 50 m² area |
| Smoke Sensitivity | EN 14604 Certified Sensitivity |
| Alarm Buzzer Volume | ≥ 85 dB at 3 meters |
| Optical Alarm Indicator | Red LED Rapid Strobe |
| Alarm Mute Function | Yes |
| Wireless Protocols | Wi-Fi 2.4GHz (IEEE 802.11 b/g/n) |
| App Compatibility | Tuya Smart, Smart Life |
| Notification Methods | Audible Siren, App Notification, LED Indicator |
| Smart Linkage Automation | Yes |
| Power Supply Type | Battery Powered |
| Battery Type | 2x 1.5V AAA / Lithium DC 3V |
| Replaceable Battery | Yes |
| Battery Life | 2 - 3 Years |
| Low Battery Alert | Yes |
| Standby Current | < 10 uA |
| Alarm Current | < 100 mA |
| Installation Method | Ceiling Screw Base Plate or 3M Adhesive Pad |
| Housing Material | Fireproof ABS Plastic (UL94-V0) |
| Operating Temp | -10°C to 55°C |
| Operating Humidity | ≤ 95% RH |
| Certifications | CE, RoHS, EN 14604 |
| Dimensions | Ø 80 x 38 mm |
| Stock | 4 |
Based on 0 customer reviews
No reviews yet
Be the first to review this product and share your experience with other customers.
