Tuya SR-803-4W WiFi Smoke Detector: WiFi connectivity for remote alerts
This smart smoke detector is for the homeowner who wants more than a loud beep. It's designed for peace of mind when you're away, like checking on your house while at work or ensuring safety during a vacation. While many focus on basic alarms, this device acts as a connected guardian, alerting you through your phone before a neighbor might notice smoke.
The app notification pops up instantly when smoke is detected, giving you time to act remotely. With two-way audio via the Tuya app, you can listen for sounds like crackling or even use voice commands with Alexa to check status hands-free. The photoelectric sensor responds quickly to smoldering fires, and the silence mode temporarily mutes false alarms from cooking, so you avoid unnecessary disruptions. Installation is simple with ceiling mounting, and the 10-year battery life means reliable protection without constant maintenance.
Features
- Mobile app notifications
- Voice control with Alexa and Google Assistant
- Photoelectric sensor for fast smoke detection
- Battery life up to 10 years
- Ceiling-mounted installation
- Certified to EN14604 and UL217 standards
- Audible alarm over 85 decibels
- Low battery warning
- Silence mode for false alarms
- 360-degree detection field
- Temperature and humidity monitoring
- History log in app
- One-button testing function
- End-of-life alert after 10 years
- WiFi connectivity for remote alerts
General specs
- Brand: Tuya
- Model: SR-803-4W
- Seller: Joom
- ID: 690b4774491dc3f800b4fd50
- Material: ABS
- Alarm Type: Smart
- Connectivity: Wi-Fi
- Power Source: Battery
- Detection Type: Smoke
- Batteries Included: Yes
- Smart Home Compatibility: Tuya Smart Life
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Tuya SR-803-4W White WiFi connectivity for remote alerts
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Soewolit KT0917
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Gaoducash YG400A
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KLTsenaife YHW-543COM-R Black
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WARROXIDE PG-S11 White Real-time alerts to your phone via app
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Evjeal CDR-811 Black
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|
| Brand | Tuya | Soewolit | Gaoducash | KLTsenaife | WARROXIDE | Evjeal |
| Model | SR-803-4W | KT0917 | YG400A | YHW-543COM-R | PG-S11 | CDR-811 |
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| Price | $29.10 | $109.69 | $27.99 | $52.99 | $19.99 | $43.99 |
| Seller | Joom | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | January 30, 2026 | January 21, 2026 | January 21, 2026 | January 21, 2026 | January 21, 2026 | January 12, 2026 |
| Material | ABS | ABS Plastic | ABS | ABS Plastic | Plastic | |
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Zigbee | Wi-Fi |
| Power Source | Battery | Battery | Battery | Battery | Battery | |
| Batteries Included | Yes | Yes | Yes | Yes | Yes | Yes |
| Weight | <num1>, <num2> | 118 | 181.44 | 45 | ||
| Detection | Carbon Monoxide, Smoke | Smoke | Smoke | Smoke | ||
| Pack Size | 3 | 1 | 1 | 2 | ||
| Alert Type | App Notification, Audible, Visual | App Notification, Audible | App Notification, Audible, Visual | App Notification, Audible | ||
| Dimensions | 107, 102, 102 | 84.6, 44.7, 84.6 | <num_width>, <num_height>, <num_z> | 90, 90, 30 | ||
| Wi-Fi Band | 2.4 GHz | 2.4 GHz | 2.4 GHz | |||
| App Ecosystem | Tuya/Smart Life | Tuya/Smart Life | Tuya/Smart Life | Tuya/Smart Life | ||
| Alarm Sound Level | 85 | 85 | 85 | 85 | ||
| Battery Type | Alkaline | AA | Alkaline | Alkaline | ||
