8CH DTMF Audio Decoding Relay ( Item#: E2639 )

We have here a very impressive product with countless of features that you will surely need! This is the DTMF audio controller with four channels, any phone or fixed telephone with DTMF key code remotely controls product relay "open" and "close" (the majority of smartphones and functions machine are DTMF code). Our software "DTMF dial" (installed in a computer) can be also provided to control relays. Do not hesitate to ask us for our recommendation to ensure the best possible feature and function that will work out for you!

Features:
Eight modes of operation.
Widely-used.
Easy to operate and very safe.
Good in quality but inexpensive.
All the product will send after good package.

Specifications:
Working voltage: DC 12V, with reverse polarity protection
Operating current: standby 11-13mA, 1 relay "open" 44mA, 2 relays "open" 77mA, 3 relays "open" 110mA, 4 relays"open" 140mA, 5 relays open 170mA, 6 relays open 197mA, 7 relays open 223mA, 8 relays open 247mA.
Maximum load: 10A / 250V AC, 10A / 125V AC, 10A / 30V DC, 10A / 28V DC, 10A / 12V DC
Item size: 94 * 62 * 19.5mm / 3.70 * 2.44 * 0.77in
Package size: 94 * 62 * 19.5mm / 3.70 * 2.44 * 0.77in
Item weight: 114g / 4.02oz
Package weight: 117g / 4.13oz

Notice:
1. Please use a small ripple DC power supply (recommended: power with earth wire).
2. Please adjust the sound output to 80-90%.
3. DTMF audio controller must use stable work of DC 12V power supply (recommendations 1A or above the power adapter).
4. Remote control the controller by a mobile phone, the receiver must be the phone with 3.5mm audio interface, the transmitter can be a cell phone or landline
5. As a receiver of the phone or a computer installed the "DTMF Dial" software must output a sound (not muted), or they will not control relays.

Package lists:
1 * DTMF  audio decoding relay
1 * Male to male audio wire(3.5mm jack)