GSM Alarm System GL09 4G/3G/GSM 8CH Alarm Security System Alert Module 8‑Channel Input Low Consumption for Home Warehouse Security(US)

I am using it for an alarm system… I have wanted to try something like this for a long time… Make sure you print the information out and study it carefully. It is really a cool device and with some imagination you can do some really interesting things with it. Try not to let it intimidate you. I may add some more information at a later date if possible. I saw a review that said it wouldn’t work with iPhone… It works fine with iPhone just download the app.

this is the second i ordered in 9 months because the 1st only lasted 9 months there is not warranty of this product, there is not similar product for sale in market, so this is my last purchase, if this goes bad in a few months, i have to get a phone line in the house and buy a sensaphone or similar.

I purchased this unit to convert my home alarm system from a landline to the cell network. The install went perfectly and the device worked well. I used the device successfully for two months. Then this device just stopped working. I emailed the company identified in the instructions asking for help but they never responded back.

I’m using this to monitor my alarm and fire system while I’m away from home.

I hooked this up with a 12DC supply. Programming is not too hard. The China made YT Videos were somewhat helpful. They are not super descriptive but helpful. The APP is a 1 at a time Programming, not batch type design. Makes it slower to do but 1 at a time & test let's you know your doing it right.

I use this as a secondary back up for a security system and it works great.

It's not extremely advanced in technology, but appears to be functioning fine, once you are familiar with its setup. I have it sending text messages on a security system......but you can use it for anything you wanted to monitor off the 8 contact points

After purchase I realized it dose not work with Iphone because it is Android only software.