GPS store on memory and GPS with satellite link

Option 1: Smallest GPS unit which simply stores all of its data into a built-in memory. - Programming: End customer should be able to program desired GPS schedule with a friendly PC software. GPS positions can be programmed from one fix every 15 seconds to one fix per day. Preferably at least 3 different schedules could be selected depending on the week of the year - GPS module will (at the pre-programmed time and date, or when battery voltage falls below a certain threshold), send a special signal to a dedicated channel which is only waiting for this signal. - Units should work on 3.6 Volts. It would be great if they could also work with 3 Volts. - Every time the unit records a GPS fix it should also record the reading from 2 or 3 sensors (temperature, battery voltage, etc). - Unit programming and data downloading should be made via Bluetooth or some other wireless option. - Operating temperature range: -40C to +85C Option 2: GPS unit with store-on-board and data downloading via Iridium - Same as above with the added benefit that all data can be downloaded via Iridium. - Data downloading should be made under pre-programmed schedule. - Unit should receive confirmation from Iridium to ensure that data sent has been successfully received.