SMS Message GPS Tracker- with this handy little device you'll be able to track and object or yourself from a remote location using ordinary GSM SMS messages. The small lightweight device houses a SIM card and battery, and is able to be used anywhere you have GSM and GPS coverage. During a quick and painless setup process you'll be able to set the time of tracking refreshes as well as the remote phone the device will keep in contact with. After setup it's as simple as "asking" the GPS device to start tracking or just for a single location result, you can even use contact the tracker with voice and whoever has the tracker can reply using the built in microphone. The SMS given to you from the tracker shows location, speed and the date with time. Suitable uses include asset protection, plotting routes and keeping track of children.

This product is Tri Band it is designed to work with 900MHz, 1800MHz and 1900MHz only

Manufacturer Specification:

• GSM: Tri Band 900MHz, 1800MHz, 1900MHz Only
• GPS Sensitivity: 159dB
• GPS Frequency: L1, 1575.42 MHz
• GPS Positional Accuracy: 5m-25m
• Velocity Accuracy: 0.1m/s
• Velocity Limit: 515 m/s (1000knots)
• Altitude Limit: 18000 Meters (60,000 Feet)
• Typical Battery Life: >40hrs
• Start Up Times (Acquisition) 
  -Hot Start: 1 Sec (avg) 
  -Warm Start: 38 Sec (avg)
• Power Source: 3.7V 970mAh Li Ion Battery (USB Recharging)
• Dimension: 75x45x23mm (LxWxD)

Other Features:

• The key on the unit can be held down for 3 seconds to emergency call to the remote phone, or 6 seconds to send SMS location message.
• LEDs to Indicate Status
• Easily Enter Coordinates into Google Earth for Visual Indication of Location.

Accessories:

• Manual
• Battery
• Manual
• USB Cable
• Power Adapter