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2.4GHz Active Key Chain

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2.45GHz Active Key Chain, 2.45GHz Active Electronic Tag, 2.4GHz Active Bluetooth Access Control Proximity Card 200M Adjustable

2.45GHz Active Key Chain, 2.45GHz Active Electronic Tag, 2.4GHz Active Bluetooth Access Control Proximity Card 200M Adjustable

Main technical parameters Operating frequency: 2.4GHz~2.483GHz Antenna: PCB unipolar antenna Output power: -18dBm~0dBm Receiver sensitivity: -90dBm Operating current: < 18uA Recognition distance: 20~200m (depending on the antenna) Read/write time: 500ms Erase life: 10 years Battery: 3.0V battery, 2 years life (battery replaceable) Power alarm: low battery alarm function Operating temperature: -20°C~+60°C Material: ABS, V0 fire rating Button: It has a

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