Buy GPS personal tracker

We are seeking a supplier/manufacturer of a GPS/GPRS/GSM personal tracker. It is essential that the unit has the following criteria, please do not respond if your unit does not conform to the technical details:

1. Must be at least tri band GSM

2. Sirf III chip

3. Battery at least 1000mah

4. three digital input

5. Three digital output

6. Channel voice

7. Data in/out, a RS-232 port  for Standard barcode, RFID, Keypad or PDA conection

A sample product must be available to test using a GPRS mobile phone or web based tracking system (in English or spanish) We have a large distribution network in Chile and have an urgent requirement for the right GPS/GPRS/GSM tracker.