Rydeen BSS2X 2-Way Advanced Microwave OE Radar Blind Spot Detection System High Accuracy Digital Microwave Radar Technology Two-color options for LED indicators for visual alerts Adjustable buzzer speaker for audible alerts Self speed sensing does not require sensors or GPS No drilling required Not applicable with metal bumpers Cross-Traffic Alerts while Reversing Specifications: Sensor Operating Frequency: 24GHz Transmit Power: 15dbm Detection Ability: 5 targets can be detected at the same time Detection Speed Range: -22.5 mph to 50 mph Speed Accuracy: < 0.5 mph Speed Restriction: The system will be only activated at the speed over 13 mph Direction of Movement/Alerts: Approached or Overtaking Other Vehicles Operating Voltage: 8V to 30V Waterproof (Radar Sensor): Radars: IP67 / Cables: NOT waterproof Working Current: < .4A Working Temperature: -20°C — +70°C Installation Angle: 35° (Horizontal) Gain: 12k Package Dimensions: 11 x 7 x 4 inches Item Weight: 5 pounds/ 16 Ounces