Enhance your electronic control projects with the AD22B04 4 Channel DTMF Tone Signal Decoder Relay, designed for reliable and versatile operation in a compact form factor. Operating at a DC 12V working voltage with built-in reverse polarity protection, this device ensures safe and stable performance, making it an essential component for remote control systems and automation solutions. Key Features: · Reliable 4 Channel Relay Control: Supports up to four independent relays, enabling control over multiple devices or circuits simultaneously with a maximum load capacity of 10A per channel at various voltages including 250VAC, 125VAC, 30VDC, 28VDC, and 12VDC. · Low Power Consumption: Features a standby current of just 11-13mA with incremental operating currents depending on the number of relays activated, ensuring energy efficiency while maintaining powerful control. · Eight Selectable Operation Modes: Offers flexible control options including non-locking (momentary), self-locking (toggle), inter-locking (latch), and multiple delay settings (5, 20, 60, 120, 250 seconds) to accommodate diverse timing and toggling requirements. · Customizable Control Commands: Default control commands 1/2/3/4 allow direct dialing to operate respective relays; commands can be modified to suit specific application needs for enhanced user control and adaptability. · Robust Protection Features: Integrated reverse polarity protection safeguards the device from incorrect power connections, improving reliability and longevity. · Compact and Lightweight Design: Weighing only 72g and sized for easy installation, this decoder relay is perfect for a wide array of electrical and automation projects where space-saving is critical. Specifications: · Model: AD22B04 · Working Voltage: DC 12V with reverse polarity protection · Operating Current: Standby 11-13mA; Relay 1 open 44mA; Relay 2 open 77mA; Relay 3 open 110mA; Relay 4 open 140mA · Maximum Load: 10A at 250VAC/125VAC and 30VDC/28VDC/12VDC · Operation Modes: Non-locking, Self-locking, Inter-locking, and delay durations of 5, 20, 60, 120, 250 seconds · Weight: 72g · Package Includes: 1 x 4 Channel DTMF Tone Signal Decoder Relay, 1 x Cable The AD22B04 decoder relay is ideal for advanced remote control, security systems, and automation projects that demand precise relay switching and flexible configuration options. Its efficient design and protective features ensure reliable operation, providing a convenient and durable solution for both professional and hobbyist applications.