YASONG 4-Tier LED Andon Stack Tower Light, Self-Locking Switch, Flash/Steady Mode, Sound Optional, IP65 Sound:With sound 100m / 320ft infrared detection

100m / 320ft infrared detection distance for outdoor perimeter security

ports and outdoor safety warning areas

construction sites and outdoor industrial security areas

sound-only

YASONG 4-Tier LED Andon Stack Tower Light, Self-Locking Switch, Flash/Steady Mode, Sound Optional, IP65 Sound:With sound 100m / 320ft infrared detectionThe YASONG 4 tier LED Andon stack tower light combines red, yellow, green and blue signal lights, self locking switch control and flash or steady on lighting modes for CNC machines, textile machinery, machining centers, automated production lines, laser equipment and automated warehouses. This model uses a plug and play switch control box, so no wiring is required for normal use. Each color button controls the corresponding tower light layer, making