Streamline Your Communication with Our Multi-Station Intercom System
Our advanced Three Call Master System Kit enhances communication across multiple locations with a Master intercom and up to three Substations (sold separately). Ideal for both indoor and outdoor (using the outdoor substation) applications, this system simplifies security and connectivity with clear, hands-free communication.
Key Features
- Direct Access to Substations: The Master intercom has three buttons for quick connection to any Substation, making communication easy and intuitive.
- Effortless Monitoring: Need to monitor a specific area? Just press the assigned button on the Master to listen in on any Substation without alerting anyone nearby. To engage in conversation, simply press the Talk button.
- One-Way Calling at Substations: Each Substation has a Call button that rings the Master intercom, allowing instant, hands-free conversation once answered.
- Reliable Security Options: With optional door unlock features, you can pair the Master with an electric door strike and relay to control access remotely (available in the Related Items section).
- Simple, Secure Wiring: Requires only 2-conductor shielded wiring for easy installation. For systems with multiple Master stations, 12-conductor wiring enables seamless communication across units.
Specifications
- Communication Mode: Press-to-talk at Master, hands-free at Substations
- Volume Control: Adjustable call tone and voice volume for tailored clarity
- Monitor Mode: Listen in discreetly on Substations from the Master
- Wiring Distance: Up to 650 feet with 22AWG; 1570 feet with 18AWG
- Power: Max 4W (AC 16V), Max 200mA (DC 24V)
- Compact Dimensions: Master: 7” x 5-5/8” x 2-1/4”; Substation: 6-1/4” x 5-1/8” x 2”
- Warranty: 1-year limited warranty for peace of mind
Choose from our available Substations and door security add-ons in the Related Items section below. Transform the way you manage security and communications today!

Features
- Simple voice communications between units
- Indoor use only
- Electronic call tone from Substations
- Press-to-talk communication at Master
- Hands free communication at Substations
- Monitor Substation area undetected from Master
- Voice and call tone volume controls
- Simple 3 conductor shielded wiring between Substation and Master station
- 12 conductor wiring required between master stations
- You can use 2 conductor shielded wiring between Substation and Master station
- Wiring Distance: 650' w/22AWG; 1570' w/18AWG
- Current Consumption: Max. 4W (AC 16V). Max. 200mA (DC 24V).
- Communication: Press-to-talk, release-to-listen at master station. Hands free at Substation.
- Dimensions Master Station: (H x W x D): 7" x 5-5/8" x 2-1/4"
- Dimensions Substation: 6-1/4" x 5-1/8" x 2"
- Warranty: 1 year.






