Our Expandable Models can be expanded with up to 9 responders. It comes with Mono Screen( Advertiser), Translucent Screen or Crystal screen. Below is an example of Responder model displaying each of these screens and control unit.

The screens available are the following:

• Advertiser - Responder
• Translucent - Responder 
• Crystal - Controller

If a larger machine is required, we offer the SV-10. Contact us for details.