Signaworks 5 Stack Super Bright LED Andon Tower Light, 3 Pos On-Off-Flash, Red/Amber/Green/Blue/White, 8 ft Power Cord, Plug & Play Ready - Walmart.com
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Freely configurable Call for Action System - WERMA Signaltechnik GmbH
Andon Systems | Wireless Andon Solutions
(DC-10T-DN-W-ANDON) 1.0 Inch LED, RF-Wireless Remote Controlled, Digital Countdown Timer with ANDON Tower light for End of Period