About The SentrySilver GPS Locator

The SentrySilver GPS is a powerful A-GPS locater that is small, lightweight, waterproof and with superior sensitivity and fast time to first fix (TTFF). Device location can be real time tracked through Internet or text based devices. The device user can communicate with the SentrySilver GPS portal through the worldwide GPRS/GSM network. The device can transmit SOS, geo-fencing data in real time while still utilizing low amounts of power.

Physical Specifications

• Weight: 2.25 ounces
• Height: 2.6 inches
• Width: 1.42 inches
• Depth: 0.79 inches

Technical Specifications

• Quad-Band 850/900/1800/1900MHz
• Compliant to GSM phase 2/2+
• Class 4 (2W @ 900MHz)
• Class 1 (1W @ 1800/1900MHz)
• Operating temperature range: -10°C to +50°C
• Backup batteries: 1250mAh
• GPS:
• GPS Chipset: SiRF Star III
• Channels: 20 channel all-in-view tracking
• Reacquisition: 0.1 sec., average
• Hot start: 1 sec., average
• Warm start: 38 sec., average
• Cold start: 42 sec., average
• A-GPS：
• SUPL 1.0 (SUPL 2.0 upgradable)

Interface:

• One Mini USB connecter for charging
• LED indicate: Power / GSM network / GPS
• 3 keys: Power on / Function / Reset