This repo provides Home Assistant/ESPHome configuration guides and other information for any Gelidus Research devices.
GRPM1 Setup Guide - GRPM1 - Split Single Phase Power Meter
GRPM1 Secondary Voltage Transformer Guide - GRPM1 - Split Single Phase Power Meter
GRGDO1 Setup Guide - GRGDO1 - Secplus GDO Controller
GRPS1 Setup Guide - PS1 Setup Guide - LD2420/LD2410C