Works normally even 99% beam energy is cut down Reliable dual detecting mode, activates alarm only when two beams are blocked simultaneously Nami material for cover LED alignment indication AX20: outdoor 20m (60 feet), indoor 40m (120 feet) Adjustable response time: 35 to 500ms Alignment: horizontal: 180-degree, vertical: 10-degree Tamper protection: activates tamper protection, when enclosure is removed ALC Black hi-intensity PC for cover Payment Details: Payment Terms: T/T or L/C at sight Delivery Details: FOB Port: Shenzhen Lead Time: 1 - 10 days