Hi, just as a service to others, I know there is a vendor on this forum that sells a switch box, although I have been told that he has an excellent product, I found something much cheaper and work very well. I was looking to buy a switch box after I installed my engine heater, but the price was a bit against my CB membership and the vendor was unsure if it would work in Canada GSM network so I went looking for an alternative.
After some research, I found on Amazon the Andoer Wireless power socket control unit. I have to say that at 45$, I didn’t have much to lose to try it, instead of the much more expensive alternative. I got it couple of weeks ago and it took me about 15 minutes to make it work. Once I figured out how to activate the sim card outside of the device by calling the number to activate it, the device worked perfectly after I put it in and follow the instructions.
The unit accepts commands by text or voice calls and dialing numbers, I find the text option superbe, as I can text the device to tell it which of the 3 sockets I want to turn on or off and it responds back with a confirmation. The only down side is that it is evident that the instructions where written by a non-native english speaking person, but still easy to understand and configure.
http://www.amazon.com/Andoer-Wireless-Mobile-Control-110-220V/dp/B00TB612FG/ref=sr_1_1?ie=UTF8&qid=1450367102&sr=8-1&keywords=Andoer+Wireless+Mobile+Cell+Phone+PDA+GSM+Remote+Control
Again, nothing against the more complete and sophisticated alternative here, but this meets my needs and permits me to proudly retain my membership of the cheap bastards club !!!
As for the service, I got a Petro Canada Mobility sim card for 12$ and with a 6 months/25 prepaid service, I can renew another 6 months again for 25$ without losing the money left on my original 25$.