Triple Beam Alarm Photoelectric Infrared LED Detector Security System ABE-250 Features: Special replacement receiving, high power transmitting device with a power margin of 90%. Ternary coaxial large aperture aspheric biofocal precision optical focusing lens. Full-featured diagnosis, environment self-adaptation. Adopts solid-state relay with characteristics of long life, no contact, low voltage and micro power consumption. Horizontal angle adjustment 180° (±90°), straight angle adjustment 20°±10°. Plastic shell fully enclosed design, IP55 waterproof grade. Specifications: Material: Plastic Optional Type: ABE-50, ABE-100, ABE-200, ABE-250, ABE-150 Outdoor Alarm Distance: 50m 100m 150m 200m 250m Indoor Alarm Distance: 150m 300m 450m 600m 750m Number of Beams: 3 Beams Detection Method: Interrupt detection simultaneously with three light beams Induction Speed: 35-700ms Alarm Output: Regular, normally closed and normally open (NC&NO)  Working Voltage: DC 12-24V; AC 11-18V Contact Capacity: AV/DC 30V/0.5AMax Working Temperature: -25°C-55°C Working Humidity: 5%-95%RH(x relative humidity) Optical Axis Adjustment Angle: Horizontal 180°(+- 90℃) Optical Axis Adjustment Angle: Vertical 20°(+- 90℃) Telescopic Sight: Detachable Package Weight: Approx.1315g/46.4oz Package List:  1 * Receiver 1 * Transmitter 2 * Blakc Large Wall Hanging Plate 2 * Small Wall Hanging Plate 1 * Plastic Bracket 8 * Screw 1 * User manual Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.