MAKE IT OFFICIAL
If you plan to purchase the SingleScore Radio or Combination Wired and Radio converter to use with your Electro-Mech wireless enabled scoreboard, make sure you have a compatible Electro-Mech ScoreLink wireless communications system. Compatible systems include the ScoreLink 350 Series and newer.

Check for one of these identifying logos to make sure. The logo can be found on the bottom of your current controller box.