From this he can monitor lighting, heating, temperature, phone and water usage.
从而他可以监测照明、采暖、室温、电话和自来水使用情况。
After the elevator door open, such as water flow, the configuration of any lighting system.
电梯门开后如水流般，配置任意的照明系统。
LED lighting with longer life, water-proof design, bright and power saving.
l大功率LED灯照明，防水设计，灯光明亮、寿命超长、节能省电。
LED lighting with longer life, water-proof design, bright and power saving.
l大功率LED灯照明，防水设计，灯光明亮、寿命超长、节能省电。
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