Specification:
Size: 8cm*5cm*1.8cm/3.1*1.9*0.7 inch (L*W*H)
Weight: 59g
Maximum load: 10A/250VAC ,10A/125VAC,10A /30VDC, 10A /28VDC ,10A /12VDC

Features:
1. Product model: AD22B04.
2. Working voltage DC 12V, with reverse polarity protection.
3. Operating Current: Standby 11-13 MA, 1 relay 'open' 44MA, 2 relays 'Open' 77MA, 3 relays 'Open' 110MA, 4 relays'open' 140MA.
4. Eight modes of operation: Non-locking (Momentary ), self-locking (Toggle), inter-locking(Latch), 5/20/60/120/250-second delay.
5. The default control command is 1/2/3/4. 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 ').

Typical Product Applications:
Home lighting system
DTMF remote control switch
Smart home/home automation
DC 12V LED lighting
Fluorescent lamp
12V DC motor
Fluorescent lamp
Automotive electronics
Industrial automation and control

Package Include:
1 x 4 Channel DTMF Tone Signal Decoder Relay
1 x 3.5mm to 3.5mm Cable