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Question:

What is the function of the repeater in the automatic alarm?

What is the function of the repeater in the automatic alarm?

Answer:

In fact, far from the proposal of wireless transmission, many hosts can now support wired and wireless, generally 100 meters receive distance can be guaranteed, plus wireless repeaters can reach 1 kilometers
Line repeater, which can be powered by an external power supply, preferably with batteries. Generally not connected from the host.

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