3Pcs Smoke Detector Wireless 433MHz Fire Security Protection Alarm Sensor for Smart Home Automation, Work with Sonoff RF Bridge

Specifications:

• Working area: 60 square meters
• Wireless Transmission Distance: 150M( in the open air), need alarm host like Sonoff bridge
• Transmitting protocol: 1527
• State of Assembly: Ready-to-Go
• Sounder level: 85dB
• RF Frequency: 433.92
• Product Name: Wireless RF433 Fire Prevention Sensor
• Power Supply: DC9V 6F22 (Battery not included)
• Model Number: Smoke detector Fire Sensor
• Low voltage Alarm: 6.8V
• Installation height: 6M
• Compatibility: All Compatible
• Camera Equipped: No
• Brand Name: EJLINK