How siren press its learning once, beep two which means coding sensor, if finally a long beep, then succeeds.
Note the siren with please turn off the other may cause the siren finally four that coded with 3.If the siren finally three times, the have coded 30pcs sensors.
User should from and then learn again. to the from siren: Long press about release, the siren will beep means siren.
Technical parameters: supply: voltage: DC12V Static current: not current: < Battery: 18650 Rechargeable Lithium Battery time: About and emitting frequency: Alarm Time: 30.
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