Yeah indeed, i have had one of THESE
units running on my boat now for 3 months with no problems. it pulls 200 ish mA which is alot, you can run it in sleep mode where it pulls 20mA.
Battery drain is not a issue with me cos the boat sits in a garage with a 350mA trickle charger running 24 hours. Ive threded the trickle charger cable through the engine and trailer as if they cut the wire or pull the plug the unit sees it as a alarm and texts me.
I have made a simple battery backup using a 12v gel cell battery which charges from the boat's battery, shoud the boat battery be dissconnected it switches over to the backup batt which will run the tracker for about 48 hours.
It arms either by a hidden touch key or by sending it a text message.
It also prevents the engine starting or you can cut the ignition by sending it a text message
It has a hidden microphone so you can dial into it and listen to the nasty burglers evil chat or just the missus gossip with her mates!!
also when arming it will set a 250 metre radius virtual geo fence around the boat. If it moves from this zone you know about it via a text.
The GPS is soo sensitive it gets a signal through my gargage roof!
A very recomended investment, but requires a bit of techy know how to get running as there is no nice software interface, you will also need a pc with a serial port to program or it will cost you a fortune in text messages programming through a mobile!