What's in the box:

Chuango 315Mhz SMK-500 Wireless Alarm Security Smoke Fire Detector Photoelectric Smoke Alarm Detector Fire Protection Sensor For Home Kitchen/Store/Hotel/Factory (Standard)

Note: This wireless Chuango 315Mhz SMK-500 smoke fire detector only can work with the 315Mhz alarm panel, can't work with the 433MHz alarm panel.

Overview:
Wireless 315MHz smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible and visual alarm from the detector itself. Widely used in home, factory, school, shop, offices, villas, residential areas, corridors, basements, penthouses or other confined rooms.

Features:
*Chuango 315Mhz SMK-500 Smoke Fire Detector For G5 B11 A11 G3 A9 H5 GSM Wifi Alarm System.
*The SMK-500 must be installed per NFPA instructions, and can only detect for smoke (not combustible fumes, temperatures or flames).
*Exclusive smoke intelligent algorithm, high sensitivity, no false alarm, strong anti-interference.No wiring needed.
*Anti-light, Moth-proof, Dust-proof, moisture-proof, High stability. Low power CMOS microprocessor, effectively extend battery lifespan.
*Once triggered, light will flash with loud high volume alarm sound, louder than 85dB.

Specifications:
Power supply: DC 9V 18mA(battery included)
Static current: 5uA
Alarm current: 15mA
LED frequency in working state: Once every 32 sec
LED frequency in alarming state: Once every 0.62 sec
LED frequency in low battery state: Once every 32 sec (last for 30 days)
Monitoring area: 20?
Alarm decibel: 85dB/3m
Radio frequency: 315MHz
Transmitting distance: 80m (in open area)
Housing material: ABS plastic
Operation Condition: Temperature: -10C ~ +55C
Relative humidity: 80% (non-condensing)
Item Size: 102 * 102 * 31mm (L * W * H)
Package Size: Approx. 16 * 11 * 5cm / 6.3 * 4.3 * 2in
Package Weight: Approx. 160g / 5.6oz

Package List:
1* Wireless Smoke Detector
1* User Manual (English)