High precision handheld gps survey Hi-target V90 plus gps prices

Satellite Signals Tracked Simultaneously 
220 Channels 
GPS……….. Simultaneous L1C/A, L2C, L2E, L5 
GLONASS……………..Simultaneous L1C/A, L1P, L2C/A (GLONASS M only), L2P 
SBAS……………………. Simultaneous L1 C/A, L5 
Galileo………………... Simultaneous L1 BOC, E5A, E5B, E5AltBOC 
BDS………………..…….……………………………. B1, B2 
QZSS…………………….. L1 C/A, L1 SAIF, L2C, L5 

POSITIONING PERFORMANCE 

Static and Fast Static GNSS Surveying 
Horizontal……………………2.5mm+0.5ppm RMS 
Vertical…………………………. 5mm+0.5ppm RMS 

Post Processing Kinematic (PPK / Stop & Go) GNSS Surveying 
Horizontal……………………….. 25px+1ppm RMS 
Vertical………………………… 62.5px+1ppm RMS 
Initialization time……….Typically 10 minutes for base while 5 minutes for rover 
Initialization reliability……Typically > 99.9% 

Real Time Kinematic (RTK) Surveying 
Single Baseline 
Horizontal……………………….. 8mm+1ppm RMS 
Vertical…………………………. 15mm+1ppm RMS

 
Network RTK 
Horizontal……………………….. 8mm+0.5ppm RMS 
Vertical………………………….. 15mm+0.5ppm RMS 
Initialization time……..…Typically < 8seconds 
Initialization reliability…….Typically > 99.9% 

Code Differential GNSS Positioning 
Horizontal………………………. 625px+1ppm RMS 
Vertical…………………………… 1250px+1ppm RMS 
SBAS ……… 0.50m Horizontal, 0.85m Vertical 

HARDWARE 
Physical 
Dimensions (W x H)…….153mm x 83mm (6.02inch x 3.27inch) 
Weight………950g (2.09lb) without internal battery 
Operating temperature………. -40℃to +65℃ (-40℉ to +149℉) 
Storage temperature…………. -40℃ to +75℃(-40℉ to +167℉) 
Humidity………………………. 100%, considering 
Water/dustproof……………….. IP67 dustproof, protected from temporary immersion to depth of 1m (3.28ft). 
Shock and vibration……………Designed to survive a 3m(9.84ft) natural fall onto concrete.