The document describes a solar power meter called the Solar-100 that is used to measure solar radiation. It can be used to calculate heating from sunlight, research optimal locations for solar panels, and measure sunlight transmission through glass. The meter has components including a sensor and buttons to power on, select units, and hold readings. Instructions are provided on safely using the meter to take measurements of solar insulation through windows and solar panels. A diagram also shows how solar power is converted to electricity for homes.