Wireless smoke detector Sonoff, compatible with 433MHz radio bridge

Key features:

• Very fast capture of smoke, immediately turns on the alarm on detection of smoke
• Power supply: DC9V 6F22
• Static current: less than 10uA
• Alarm current: less than 40mA
• signal low battery Yes
• viewing area: 60㎡
• Universal 433mHz frequency can be combined with almost all gateways for home security
• 75dB sound alarm will scare the elderly and children
• 1 year battery life, no need to frequently replace the batteries
• The transmission distance: more than 150 meters of open area
• Transmission Frequency: 315 / 433mHz
• Distance to start: not less than 120 m (open distance)
• Alarm sound: 785dB
• Battery life: 1 Year
• Size: 113 * 38 mm
• Warranty: 1 year warranty at a manufacturing defect.