This is in a measurement system in Italy, which uses TriStar45 to control solar charging. There are 30 sets of solar power systems in the area, each of which includes 2 solar cell components, 2 TriStar45 solar charging controllers and 2 colloidal batteries. It is used for equipment in the system: 2 seismic detection sensors, 1 wireless bridges for remote data transmission and 1 GSM modules for alarm transmission.