





Standalone Smoke Detector SN-828-3
Product Specifications
Comprehensive fire detection and alarm functions for early fire discovery, suppression, and escape assistance
360° smoke detection with high sensitivity and wide detection range (20-40 m²)
High-decibel alarm sound ≥80 dB at 3 meters for timely alert
Low power consumption with long standby time up to 1 year
Low battery warning with LED flash and beep alert every ~50 seconds
Flame-retardant housing for enhanced safety

Fire Protection System: 1 Main Unit + 10 Smoke Detectors
CNÂ¥1,940.00

Fire Protection System: 1 Main Unit + 1 Smoke Detector
CNÂ¥845.00
Stable and reliable performance with minimal false alarms
Self-test function via test button producing regular beep and flashing LED for ~15 seconds
Smoke Detector ×1
User Manual ×1
Screws and Accessories ×1 set
2 AA Batteries (brand may vary)
Insurance Card ×1
Adhesive Sticker ×1
Install on ceiling, at least 10 cm away from walls and 50 cm from corners
Avoid installation in kitchens, near hot water heaters, high humidity areas, dusty or dirty places, near stoves, or where airflow or objects may block smoke
For rooms longer than 10 meters, install multiple detectors
When ceiling or wall is sloped, install detector at least 500 mm away from highest point
Not recommended for kitchens, bathrooms, or areas with high humidity or contamination
Emits ≥80 dB alarm sound to alert occupants promptly
Visual alarm with flashing LED light
Low battery indicated by red LED flash and beep every ~50 seconds
Equipped with high-capacity alkaline batteries (brand random)
Low power consumption design ensures up to 1 year standby time
Insurance policy number may be updated periodically; image and details are for reference only

Fire Protection System: 1 Main Unit + 1 Smoke Detector
CNÂ¥540.00

WIFI Smoke Alarm with APP Remote Notification
CNÂ¥122.00