Genuine LiftMaster K40-38471 UL warning sign for the HCTDCU high-traffic overhead gate operator.
Fitment: LiftMaster HCTDCU and HCTDCUL high-traffic overhead gate operators.
UL325 requires a warning sign on each side of the gate. Replace when the existing sign is faded, damaged or missing.
![Liftmaster warning sign overhead [K40-3505] [Caution Sign]](https://cdn11.bigcommerce.com/s-32eq2wsbti/images/stencil/500x659/products/11714/227992/liftmaster-warning-sign-overhead-k40-3505-caution-sign-40-3505__31046.1721408423.jpg?c=2 "Liftmaster warning sign overhead [K40-3505] [Caution Sign]")
