AD22B04 12V 4 Channel DTMF Tone Signal Decoder Relay Phone Remote Control PLC Features: Product model: AD22B04. Operating Current: Standby 11-13 MA, 1 relay "open" 44MA, 2 relays "Open" 77MA, 3 relays "Open" 110MA, 4 relays"open" 140MA. Eight modes of operation: Non-locking (Momentary ), self-locking (Toggle), inter-locking(Latch), 5 or 20 or 60 or 120 or 250-second delay. The default control command is 1 or 2 or 3 or 4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4 control commands can be changed any 1-4 bits. (For more details, refer to "AD22B04_4 channel DTMF controller commands setting manual "). Specifications: Size: as the picture Weight: 72g Maximum load: 10A or 250VAC ,10A or 125VAC,10A or 30VDC, 10A or 28VDC ,10A or 12VDC Package Included: 1 x 4 Channel DTMF Tone Signal Decoder Relay 1 x cable Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.