AD22B04 12V 4-Channel DTMF Tone Signal Decoder Relay Module Features: - Product model: AD22B04 - Operating current: Standby 11–13 mA; 1 relay activated: 44 mA; 2 relays activated: 77 mA; 3 relays activated: 110 mA; 4 relays activated: 140 mA - Eight operating modes: Momentary, Toggle, Latch, and time-delay options (5, 20, 60, 120, or 250 seconds) - Default control commands: Dial 1 to activate relay 1, dial 2 to activate relay 2, dial 3 to activate relay 3, dial 4 to activate relay 4. Command digits can be customized to any 1–4 digit combination. Specifications: - Dimensions: As shown in product images - Weight: 72 g - Maximum load rating: 10 A / 250 V AC, 10 A / 125 V AC, 10 A / 30 V DC, 10 A / 28 V DC, 10 A / 12 V DC Package Includes: - 1 × 4-Channel DTMF Tone Signal Decoder Relay Module - 1 × Connection Cable