Inter-connected(wireless online) smoke alarm with

Optical/photoelectric Smoke alarmBattery operated (1X9V; 3X1.5V) Inter-connected(can be communicated); Low battery single Test button(RED LED) Solid connections and battery included Size: 128X50mm CE-CPD EN14604 APPROVALTechnical Parameter: Working voltage: DC9V(smoke testing DC4.5V(transmission/Receiver3X1.5V battery Current: DC9V average stand-by current≤10uA DC9V average alarming current ≤ 20mA DC4.5V average working current ≤120 uA Alarming decibel: >=85dB/3m Alarming LED: Red LED LEARN LED: Red/Green LED Frequency: 433.92MHz Transmission/Receiver distance: Spacious distance≤60m Working temperature: -10 40The photoelectric inter-connected wireless online smoke alarm can be connected each other and become a system. Its communication is very easy just through a LERAN button. In a learnable wireless online smoke alarm system, if one smoke alarm detects the smoke and sounds, others will sound together. In this case, the users will know the fire danger in advance and take action.