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Description:Model: JY-DS, wire/wireless active infrared detector, which include models: 2 beams/4 beams/6 beams/8 beams/10 beams. Widely used at gate, yard, balcony, garage, home, shop, school, hospital, factory, warehouse, bank, government, etc. Features 1. Wire/wireless installation, easy operation, DIY project 2. High sensitive chips inside and strong anti-interfere 3. High quality aluminum cover