: The transmitter operates on a DC supply ranging from 16 to 32 VDC (EC and mV versions) or 18 to 32 VDC (Searchpoint Optima Plus and Searchline Excel).
The XNX guide walks the user through using a magnetic wand to interact with the device through the glass. You can perform zero spans, change relay settings, and check diagnostics without ever breaking the seal on the enclosure. It is a subtle, incredible feat of UI/UX design—solving a life-or-death problem using the same physics as a child's magnetic maze toy. Xnx Universal Transmitter Quick Start Guide