We would like you to know the model USR-40, Dedicated Remote (3+ Way) Controller Base is obsolete.  The 100% backward compatible replacement is the new and improved version; model USR-40A, which has the same price as the USR-40.     

The new USR-40A is fit, form and function backward compatible with the obsolete USR-40.  It is improved with dual blue/green LEDs, supported by a split light pipe.  So the master switch load status can be matched (blue/green) and visible for single and dual rocker configurations. The USR-40A supports all ZS11 and ZS12 series, single and dual-tall rocker faceplates (white, almond, light almond, ivory, brown and black). Blue LED indication requires an always hot (120 vac) connection; if this hot connection is not available the USR-40A functions just like the previous versions where the green LED tracks the connected load.