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1. Voltage: DC3V 2. Working temperature: -10 degrees to 55 degrees 3. Working humidity: 10%-90% 4. Communication protocol: Zigbee 5. Material: PC 6. Support system: iOS8.0/Android4.0 and above 7. Transmission distance: 10-30m 8. Alarm concentration: 8%LEL 9. Concentration error: about 3% LEL 10. Alarm mode: sound and light alarm 11. Alarm sound pressure: about 70db 12. Installation method: wall/ceiling 13. When the smoke concentration reaches the alarm value, the alarm will send out an audible and visual alarm signal. 14. Battery life: more than one year, 20 times a day 15. Can be controlled by mobile phone, remote alarm, low power reminder.
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