PT-51
PT-51 is a powerful GSM/GPS safety phone designed mainly for seniors and lone workers. Its built-in GPS receiver has superior sensitivity and fasttime to first fix. Its quad band GPRS/GSM subsystem supports 850/ 900/ 1800/ 1900 MHz. System integration is straightforward as complete documentation is provided for the full featured @Track protocol. The Track protocol supports a wide variety of reports including emergency, geo-fence boundary crossings, low battery scheduled GPS position (with cell-ID reporting) and man down alert. The GT300 also supports inbound SMS display and a configurable 20 number address book.
FEATURES
- Quad band GSM/GPRS 850/900/1800/1900 MHz
- Internal u-blox chipset
- Inbound SMS display and 20 number address book
- Embedded full featured Track protocol
- Indoor tracking and positioning through access point MAC address lookup services.
- Low power consumption, long standby time with internal battery
- Internal 3-axis accelerometer for power conservation and motion detection including man down alert
- Internal GSM/GPS antennas
- CE/FCC/PTCRB/GCF certified
- Wifi for Indoor Positioning and Data Transmission
- GPRS and GPS for Outdoor Positioning and Data Transmission
- Instant Geo-fence Setting and Multiple Function Keys
- Man Down Alarm
Specifications
GSM Specification
| Parameter | Description |
| Frequency | Quad band: 850/900/1800/1900 MHz |
| GPRS | GPRS multi-slot class 12 GPRS mobile station class B |
| Max Out RF Power | GSM850/GSM900: 33.0±2 dBm DCS/PCS: 30.0±2 dBm |
| Dynamic Input Range |
-15 ~ -108 dBm |
| Receiver Sensitivity |
Class Ⅱ RBER 2% (-107 dBm) |
| Stability Of Frequency |
< 2.5 ppm |
| Max Frequency Error |
± 0.1 ppm |
GPS Specifications
| Parameter | Description |
| GPS Chipset | u-blox All-In-One GPS receiver |
| Sensitivity | Upto -160 dBm |
| Position Accuracy | Autonomous: < 2.5m SBAS: 2.0m |
| TTFF (Open Sky) | Cold start: 30s average Warm start: < 30s |
General Characteristics
| Parameter | Description |
| Dimensions | 94mm*48.5mm*18mm |
| Weight | 90g |
| Battery | Li- Polymer 850 mAh |
| Standby Time | Without reporting: 190 hours 5 minutes reporting: 110 hours 10 minutes reporting: 125 hours |
| Charging Voltage | 5V DC |
| Operating Temperature | -20℃ ~ +55℃ |
Interfaces
| Parameter | Description |
| Mini USB Interface | For external power and configuration |
| Power Button | Power on or off device |
| SOS Button | SOS/Emergency alarm |
| Volume Adjustable Buttons |
Two side buttons to increase/decrease volume |
| Dial, Reject Button | For dialing and rejecting incoming calls or menu selection |
| 4 Preset Number Buttons |
For quick dialing of preset numbers or menu selection |