BN-220 Dual GPS Glonass Module Navigation TTL Level 9600bps + GPS Passive Antenna for Arduino Raspberry Pi Pixhawk F3 CC3D Betaflight F4 Flight Control Geekstory auspowers_batchtwo [Andobil Worry-Free Vouchsafing] - ANDOBIL

[Andobil Worry-Free Vouchsafing] - ANDOBIL cup phone holder for car always provide 24-month of worranty-support

8 cms (L) x 7

They seem like they would withstand the elements and they are also highly visible and reflective

Cordless Drill (with drill bits) and some type of saw for cutting plastic is required for installation

instrumentation and CATV cables

BN-220 Dual GPS Glonass Module Navigation TTL Level 9600bps + GPS Passive Antenna for Arduino Raspberry Pi Pixhawk F3 CC3D Betaflight F4 Flight Control Geekstory auspowers_batchtwo [Andobil Worry-Free Vouchsafing] - ANDOBILBN 220 Dual GPS Glonass Module Navigation TTL Level 9600bps + GPS Passive Antenna for Arduino Raspberry Pi Pixhawk F3 CC3D Betaflight F4 Flight Control Geekstory Specification Receiving Format : GPS,GLONASS,Galileo,BeiDou,QZSS and SBAS Frequency : GPS L1,GLONASS L1,BeiDou B1,SBAS L1,Galileo E1 Channels : 72 Searching Channel Sensitivity Tracking : 167dBm, Reacquisition : 160dBm Cold start : 148dBm, Hot start : 156dBm Accuracy Position Horizontal : 2.