R21 GNSS receiver


strong signal

small volume

A sub-meter-level product specially customized for precision agriculture, vehicle positioning, machine control, and ship positioning.

Single point smoothing function Accuracy up to ± 20 cm, supports RT K differential

Multi-satellite and multi-frequency, which maximizes the number of search stars in various complex environments and ensures the quality of positioning

The suction cup type installation and disassembly is very convenient, stable performance, high positioning accuracy, accurate speed measurement

Application areas

can meet most of the needs of precision agriculture, vehicle positioning,

mechanical control, ship positioning

Product description

Signal tracking

Accuracy Index

Physical properties

GPS: L1/L2
Galileo: E1/E5b
Cold start time: <25s
Initialization time: <5s (typ.)
RTK initialization reliability: >99.9%
Recapture: <1s

Single point smooth positioning

accuracy (RMS):Plane: 0.2m
RTK Accuracy:
Plane: ±(8+1.0×10-6×D)mm Note 1
Elevation: ±(15+1.0×10-6×D)mm
Speed accuracy: 0.03m/s

Size: Φ150mm×61.7mm
Working temperature: -45℃~+75℃
Storage temperature: -55℃~+85℃
Waterproof and dustproof: IP67
Shock and Vibration: 2m drop resistance
Humidity: 100% non-condensing
Weight: 0.64kg

Electrification parameters

Data output

I/O interface

Power supply: 9~36V DC
Power consumption: ≤4W

Data format: binary code, NMEA-0183
Differential data: RTCM3.0, RTCM3.2
Baud rate: 9600~406800

Nine-pin aviation plug: 1 power supply,

1 RS232
Bluetooth (optional): BT4.0, backward compatible

with BT2.x,

the protocol supports Windows/Android/IOS system



R21-Smart antenna

Size: 331.9KB

2023-05-17 13:36