I recevied a post card from DSI and decided we had enough with our previous service provider. They exceded my expectation from all levels. I was impressed with DSI because the owner came out to switch our service. Got the first month for free and now we are saving almost $6/month. Glad we made the choice to switch from Ackerman because they were going to charge us $240 just to install a new keypad by our warehouse door. DSI installed the keypad for only $ 90.00 saving me $ 150.00. They also gave me free online access to my account and email alerts when my system is turned on and off. Today I set off the alarm and was amazed at how fast they called to verify the alarm. Seemed to be faster than it was with Ackerman. The only thing that I can complain about is the fact that it has been a week and I still do not have their sign.
more