I use several device managers that can alert, track, remote wipe, etc.

If you enter the PIN wrong on our phones 3 times, it locks, takes a selfie, e-mails it to us and GPS tracks the location.

It sends the info SMS to the other phone setup in the account, and she or I can lock it from there using the app via SMS.

Take a look at Theftie. http://www.theftie.net/feature

I have had a few false alarms with it claiming a SIM removal that needed an unlock to get access to the phone back.