SIM66MD is a high performance and reliable GNSS module. It is a standalone L1 +L5 dual-band GNSS module in a LCC, which allows customer to achieve industry’s high level sensitivity, accuracy, and Time-to-First-Fix (TTFF) with lower power consumption.
SIM66MD provides simultaneous GPS, GLONASS, BeiDou , Galileo QZSS open service L1 reception capability and GPS, BeiDou,Galileo,QZSS and NAVIC open service L5 reception capability. SIM66MD can acquire and track any mix of multiple satellite signals. SIM66MD achieves the highest performance and fully meets the industrial standard.
Every SIM66MD module now includes a 6-month free Skylark Nx RTK trial.
(From 2025.10.28 to 2026.04.30)
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Mechanical data
? Dimensions 10.1*9.7*2.4mm
? Weight 0.5g
Features
Support L1: BeiDou/GPS/GLONASS/Galileo/QZSS
L5: BeiDou/GPS/Galileo/QZSS/NAVIC* Support AGNSS Support PPS Low-noise amplifier has been integrated Support DGPS (RTCM)/RTK* Indoor and outdoor multi-path detection and compensation
Certifications（plan）
? CE
? RoHS/Reach |
Performance data
Receiver type L1: 75SVs L5: 60SVs
Max. update rate 10Hz
Sensitivity:
Tracking -165dBm
Reacquisition -155dBm Cold starts -148dBm
Time-To-First Fix:
Cold starts 24s
Warm start 19s Hot starts <1s
Accuracy:
Automatic Position 0.5M
Speed4 0.01m/s
Operation temperature -40℃~+85 ℃
Speed?：0.1m/s
Operation temperature5：-40℃~+85 ℃
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Interfaces
Serial interfaces :
UART
SPI I2C
Digital I/O:
Pulse-per-second (PPS)
EINT0 input
Protocols:NMEA
RTCM*
Electrical data
Power supply 1.7V~3.6V
Power consumption
Acquisition 25mA
Tracking 25mA Sleep current TBD Software RTC current TBD Antenna type Active and passive Antenna power External or internal VCC_RF |
Online questions
