Ground an X2 Data Logger
Every new X2 data logger will ship with a grounding kit. The included X2 Ground Kit Quick Start steps through the process of assembly.
The hardware in the kit creates a ground path from the X2 through the PM2 mounting accessory to the 2″NPT galvanized or aluminum pipe used for mounting in the field. To establish a proper ground the mounting pipe must be buried in the ground or connected to an earth ground.