The King Pigeon S1 Series represents a highly efficient and cost-effective solution for remote monitoring and control over the GSM network. Designed for simplicity and reliability, these units act as a bridge between your mobile device and remote equipment, allowing for instant status updates and remote switching from anywhere in the world covered by cellular service.

Cost-Free Remote Switching

One of the standout features of the S1 series is its "Authorized Call Control." The unit can store up to 200 authorized phone numbers. When a call is received from an authorized number, the RTU identifies the caller ID and triggers the onboard relay (for example, to open a gate or start a pump) before hanging up. This process incurs no call charges, making it an ideal choice for access control or remote irrigation systems where frequent operation is required.

Reliable Alarm and Status Monitoring

Equipped with multiple digital inputs (DI), the S1 series functions as a proactive alarm terminal. Each input can be connected to various sensors, such as motion detectors, water level floats, or door contacts. Upon a state change (Open to Closed or vice versa), the unit immediately sends a customizable SMS alert to up to 10 preset mobile numbers. This real-time feedback is critical for securing remote substations, base station enclosures, or private properties.

Simplified Management

• Easy Programming: The unit can be configured entirely via SMS commands or through a user-friendly PC software connected via USB.
• Internal Battery Management: Supports an optional backup battery, ensuring that an SMS alert is sent even if the main power supply is cut (Power Failure Alarm).
• Compact Industrial Design: Housed in a durable metal casing, the S1 series is built to handle standard industrial environments and is small enough to fit inside existing control panels.
• Timed Reports: Can be programmed to send a "Heartbeat" SMS at regular intervals to confirm the unit is online and functional.

Typical Applications

• Access Control: Cellular-based gate and garage door openers.
• Infrastructure Security: Monitoring remote transformer stations, valve rooms, or warehouses for unauthorized entry.
• Pump & Motor Control: Remote starting and stopping of motors with confirmation feedback.
• Power Monitoring: Sending alerts during mains power outages at server rooms or cold storage facilities.