Specifications:

• Origin: CN(Origin)
• Working area: 60 square meters
• Wireless Transmission Distance: 150M(open air), need alarm host
• Type: Smoke Detector
• Transmitting protocol: 1527
• Sounder level: 85dB
• RF Frequency: 433.92
• Power Supply: DC9V 6F22 (Battery not included)
• Model Number: 670 smoke sensor
• Low voltage Alarm: 6.8V
• Installation height: 6M
• Function 3: SONOFF Bridge Smart Home Automation Security Protection
• Function 2: 433mhz Fire Alarm Sensor Device support
• Function 1: TISHRIC Smoke Detector Wireless 433mhz
• Brand Name: TISHRIC
• Note: Need work with sonoff bridge