Dahua HAC-HDW2120SN Руководство пользователя - Страница 5
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Please shut down the device and then unplug the power cable before you begin daily maintenance
work.
Use the dry soft cloth to clean the device.
If there is too much dust, please use the water to dilute the mild detergent first and then use it to clean
the device. Finally use the dry cloth to clean the device.
Please put the dustproof cap to protect the CCD (CMOS) component when you do not use the camera.
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