Video Door Phone Kit, Dahua IP2-wire...
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The two-way wireless rectangular siren, EL-4726 is designed to extend the signaling capabilities of the security system outside the protected area in any outdoor environment. Being fully battery operated and wireless, the external wireless siren offers an easy and flexible solution for quick installation.
The siren can be configured to output exit and entry beeping tones. Up to four sirens can be connected to one system. Available in Blue color.