Base map
G721 provide base world map for your reference while collecting data and navigation.

Simple operation
Numeric and alphabetic keyboard makes the data operation as convenience as mobile phone. You could input words easily, save time in field work.

Field-proven design
G721 is highly shock resistant and waterproof to IPX7 standard, making it ready to perform in even the harshest working environment. It can withstand the hazards of your professional fieldwork while your investment is protected by its high durability

High precision
SBAS enabled GPS receiver provides more precise location and navigation.
 

G721 Technical Specifications

GPS
Channel: 16 channels (L1 C/A code, SBAS)
Antenna: Integrated high sensitive GPS antenna
Time to fix: cold start < 150s
　　　　　 Hot start < 10s
Accuracy①
SPS<6m (2D RMS)
SBAS: 2~5m (2D RMS)
RTCM②-IN: 1~3m (2D RMS)
Input/Output
Communication: RS232, USB port
　　　　　　　　NMEA0183 output, RTCM input
Display: 2.5” TFT color screen, 240×320 pixel
Keyboard: 23 numeric keys, night visible
Physical
Size: 142mm×64.8mm×30mm
Weight: 250g (without batteries)
Memory: Micro SD card,64M RAM, support maximum to 2G
Power
Battery: 3 AAA batteries, 8 hours (typical)
Power: 0.2W ~ 0.4W @ 2.8V ~ 5.0V, external power support 3.5V to 5.5V
Environmental
Temperature: Operating: -10℃ ~ +60℃
　　　　　　 Storage: -20℃ ~ +70℃
Waterproof: IPX7
Shock: survive 1m drop onto concrete

① The accuracy depends on the satellite condition, differential signal and working environment.
② RTCM-SC104 is the international standard format of GPS differential data.

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