http://www.ja-gps.com.au/carminder_index.html
Want to keep track of an outdoor object for less than $900? Here's the simple answer, built right here in Australia. It is easy to install, and reliable.
When installed with a 12v power source, it can send an SMS message to ANY SMS capable mobile phone, giving latitude and longitude, and street directory reference (all capital cities). This unit can be installed anywhere- a bike, car, earthmoving machinery, boat, and trailer. The system can be wired to a car or boat alarm, so that it automatically sends the message when the alarm is activated. The applications are limited only by your imagination, and the range of the GSM mobile phone network.
The price of $891 gives you a plain black box, which includes the GPS and GSM aerials, installed mobile phone with pre-set number and SIM card, and power and aerial cabling. You can install it yourself, or employ an auto-electrician.
How do you operate it?
Just dial the pre-set number of your Carminder using ANY SMS capable mobile phone. Within 30 seconds, Carminder sends you an SMS message, detailing the position, direction and speed of the vehicle in which it is installed. This position can be located on a directory, or a digital map. The SMS service from carminder is pin-code protected, so you have complete control over how and where Carminder messages are sent.
What is the cost?
The only cost is the six monthly fee (approximately $30) to re-charge the SIM card on the Carminder phone, and the cost of any calls you make to the Carminder.