3 units of LG 55SM5KE 55″ signage monitor installed using DWM3X1 display wall mount. Old mounting system was a customized metal frame made for VESA mount pattern of 400x400mm. However, old signage screens broke down and the replacement model comes with a different sets of VESA mounting pattern. To solve this problem, we installed wooden planks on the metal frame and mounted DWM3X1 display wall mount on it.
The new mounting system is compatible VESA range from 200×200 to 400x400mm, this solved the problem of future changing of displays too. DWM3X1 comes with the function of alignment adjustment, 3 monitors were aligned level across nicely!