Dahua HS4408-4ET-96, Quick Start Manual, Page: 5 / 24

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Make sure to install a circuit breaker in the external power circuit.
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A 16 A overcurrent protection device is required to be installed in the external power circuit of
the product.
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Voltage stabilizer and lightning surge protector are optional depending on the actual power
supply on site and the ambient environment.
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To ensure heat dissipation, the gap between the device and the surrounding area should not be
less than 10 cm on the sides and 10 cm on top of the device.
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When installing the device, make sure that the power plug and appliance coupler can be easily
reached to cut off power.
Operation Requirements
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The device or remote control contains button batteries. Do not swallow the batteries due
to the risk of chemical burns.
Possible result: The swallowed button battery can cause serious internal burns and death within
2 hours.
Preventive measures (including but not limited to):
Keep new and used batteries out of reach of children.
If the battery compartment is not securely closed, stop using the product immediately and
keep out of reach of children.
Seek immediate medical attention if a battery is believed to be swallowed or inserted inside
any part of the body.
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Battery Pack Precautions
Preventive measures (including but not limited to):
Do not transport, store or use the batteries in high altitudes with low pressure and
environments with extremely high and low temperatures.
Do not dispose the batteries in fire or a hot oven, or mechanically crush or cut the batteries
to avoid an explosion.
Do not leave the batteries in environments with extremely high temperatures to avoid
explosions and leakage of flammable liquid or gas.
Do not subject the batteries to extremely low air pressure to avoid explosions and the
leakage of flammable liquid or gas.
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Operating the device in a domestic environment may cause radio interference.
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Place the device in a location that children cannot easily access.
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Do not disassemble the device without professional instruction.
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Operate the device within the rated range of power input and output.
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Make sure that the power supply is correct before use.
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Make sure the device is powered off before disassembling wires to avoid personal injury.
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Do not unplug the power cord on the side of the device while the adapter is powered on.
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Use the device under allowed humidity and temperature conditions.
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Do not drop or splash liquid onto the device, and make sure that there is no object filled with
liquid on the device to prevent liquid from flowing into it.
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Operating temperature:-30 °C to +65 °C (-22 °F to +149 °F).
Quick Start Guide
IV