Hardware

• Transmits location via Iridium Satellite network, and works anywhere on earth (including polar, desert and ocean regions) with a clear view of the sky.
• Active GPS Antenna for obtaining fast, accurate lock on position
• Alert mode, alerts base of position by text message when activated in an emergency
• Rechargable lithium-ion battery lasts up to a year, depending on transmission frequency (see table, right).
• Waterproof to depths of 50m, and it floats too!
• Ruggedised outdoor casing to protect from extreme environments.
• Strong fabric outer sheath with multiple attachment points for backpacks etc
• Can send and receive short messages when connected to a laptop
• Only weighs 750g, and measures 19x7x9 cm.
• Tested to -20 degrees C and up to +50 degrees C

Software

• Web-based interface to view positions of multiple units on Google Maps
• Compatible with a range of web browsers on both Mac and Windows platforms
• Real-time view shows new positions as soon as they are received
• Positions can also be viewed in Google Earth
• WAP/Mobile phone interface to view simple unit positions out in the field

Battery Information

Based on usage 24 hours a day, and with a clear view of the sky, you can expect the following battery life estimates: