GlobalSat GH-615B provide fully-sealed, waterproof and large LCD wrist- watch device, as well as GPS navigation function that locate track point from start to stop. It is adopted for people who exercise for broad kinds of outdoor sport, such as Jogging, Running, Biking, Snow skating etc. And it can be also used as GPS receiver by USB interface.

Feature:
1. Built-in SiRF Star III high performance GPS chipset. Excellent sensitivity for fixing the position even at a weak signal status.
2. With built-in rechargeable and high capacity lithium-ion battery.
3. Large LCD for easy read.
4. WAAS/ ENGOS support.
5. Waterproof and rigid design to avoid damaging with carelessness.
6. Recording all history of self- training by defined day.
7. GH-615B can be used as a GPS receiver by easy setup.
8. The firmware of the GH-615B can be upgraded through PC.
9. Navigation: Tracking your route as crumb method; mark and save your tracking points by special algorithm; find the specified location.  
10. Support Google Earth file format
11. Embedded high capacity flash memory to store the plenty of data.
12. Calories calculation
13. Track Back: Giving you a reference route according to your activity before to get better performance of training.

System Specification

Item: GH-615B
Number of Waypoints: 100
Tracking point: 60000
Display Size: 24.9 x 39.88 (H x W in mm.)
Display type: Black & White LCD
Pixels (H x W): 80 x 120
Unit Weight: 72.87g
Waterproof Standard: IPX7
Unit Size: 76.5 x 61.5 x 17.5 (L x D (Φ)x H  in mm.)
Backlit Display: Single level
Operating temperature: -10 ° to 60 ° C
Humidity: 5% to 95% Non-condensing
Voltage: 3.7V for a rechargeable battery, 5V for charging input.
Charging connector:  DC 5V
Battery: Rechargeable 750mAh Li-ion battery.
Power Consumption:
GPS, HBM & Backlight off: 25mA
GPS on (no fixed): HBM & Backlight off: 72mA
GPS on (3D fixed): HBM & Backlight off: 64mA
GPS on (no fixed): HBM & Backlight oon: 90mA
Battery life:
9.5 hours (3D fix, GPS on; HBM & Backlight off)
7.5hours (3D fix, GPS, HBM & Backlight on)
21 hours (GPS, HBM off; Backlight off)
Connect to PC Interface: Probe Pin to USB Interface
Charger: Mini USB 350mA, 3 hours completed


GPS Parameters General

GPS Chipset: SiRF Star III
Frequency: L1, 1575.42 MHz
C/A code: 1.023 MHz chip rate
Channels: 20 channel all-in-view tracking
Antenna Type: Built-in patch antenna
Position: 10 meters, 2D RMS, 5 meters, 2D RMS, WAAS enabled
Velocity: 0.1 m/s
Time: 1 us synchronized to GPS time
Default datum: WGS-84
Reacquisition: 0.1 sec., average
Hot start: 1 sec., average
Warm start: 38 sec., average
Cold start: 42 sec., average
Altitude: 18,000 meters (60,000 feet) max.
Velocity: 515 meters/ second (1000 knots) max.
Acceleration: Less than 4g
Jerk: 20 m/sec3