Best For: Homes, offices and reception areas requiring a reliable one-door-to-one-handset audio intercom Aiphone DA-1ASK Single-Door Audio Intercom Kit Speak with visitors before opening the door with the Aiphone DA-1ASK audio intercom kit. Designed for a single entrance and one internal location, this straightforward two-wire system combines an exterior door station, an indoor handset and the required power supply. The visitor speaks hands-free at the entrance station, while the person inside answers using the DA-1MD handset for clear, full-duplex communication. A compatible electric door strike can also be released from the internal station, providing convenient entry control without a separate door-release transformer. Important: The DA-1ASK is an audio-only, one-call intercom system. It does not include video, smartphone access or an electric door strike. If you need multiple internal stations, multiple apartments or mobile-app control, please contact CTC Communications before ordering so we can recommend the correct Aiphone system. What’s Included 1 × Aiphone DA-1DS one-call audio entrance station 1 × Aiphone DA-1MD audio handset tenant station 1 × Aiphone PT-1211C power supply This package contains the main intercom components. Cabling, an electric door strike and installation accessories are not included unless specifically stated. Key Features Visitor screening before entry – speak with a caller at the entrance without opening the door Two-wire intercom design – provides a practical installation between the entrance and tenant stations Handset communication – the internal DA-1MD provides full-duplex audio conversation Hands-free entrance station – visitors can speak naturally after placing a call Electric door-release capability – operates a compatible door strike through the entrance station without a separate strike transformer Backlit directory – helps visitors identify the call point in lower-light conditions Adjustable call volume – includes call-tone volume control and a mute indicator Auxiliary option button – can control a compatible external device such as an entry light when correctly wired How the Aiphone DA-1ASK Works The visitor presses the call button on the DA-1DS entrance station. The internal DA-1MD handset sounds its call tone. The occupant lifts the handset to speak privately with the visitor. If a compatible electric strike is installed, the occupant can activate the door release from the tenant station. This simple operation makes the system well suited to properties that need dependable voice communication without video screens, apps or network configuration. Ideal Applications Single-family homes Home offices and studios Small offices and reception areas Consulting rooms and professional suites Workshops and small commercial premises Single-entry gates or doors requiring visitor communication Door-Release Compatibility The DA Series can operate a compatible 9.5–20V AC electric door strike with resistance of 70Ω or higher. Aiphone specifies the EL-12S as a compatible strike. The strike and associated locking hardware are sold separately and should be selected to suit the door, frame and required locking function. Read our guide to choosing an electric door strike before adding door-release hardware. Installation Requirements The system uses two-conductor cabling between the entrance station and tenant station, with separate two-conductor cabling for the power supply. Maximum cable distance depends on the cable type and conductor size used. Professional installation is recommended to ensure correct cabling, weather protection, power-supply placement and door-strike compatibility. An installer should also confirm that the proposed cable route and locking hardware comply with the property’s requirements. DA-1ASK or a Video Intercom? Choose the DA-1ASK when you need a simple and dependable audio conversation between one entrance and one internal handset. Consider a video or smartphone intercom when you also want to see visitors, answer calls remotely or connect more internal stations. Compare more Aiphone intercom systems, or learn more about selecting an intercom system for your home. Why Buy from CTC Communications? Security and communications specialists since 1993 Australia-wide product delivery Professional intercom installation available across Sydney Technical assistance with system and door-release compatibility If you are unsure whether the Aiphone DA-1ASK suits your property, contact CTC Communications before ordering and our team can help confirm the correct intercom and locking components.