• Miniature screw-clamp terminal strips for easy connection to your external circuits.
• Relay interlock mode allows easy use as a remote-controlled audio selector.
• Status lights indicate power, DTMF tone detection, and unit selected.
• Switch-selectable Device Selection Code allows up to 15 DT-40's to be individually controlled from one audio source.
• All IC's plug in for easy maintenance
• Compact size: 9.5" x 2.5" x 1" (L x W x H)

The DT-40 Accepts DTMF tones from an audio line, receiver, or other source, accepts a user access code, then allows remote control of sixteen SPDT relays. The relays can be momentary, latching, or interlocking. The DT-40 is easy to understand, easy to install, secure, and effective.