A powerful sales aid for demonstrating the solar performance of windows and film. The Solar Power & Transmission Meter offers all of the benefits of the Solar Power Meter, but the big advantage is the ability to measure actual Solar TRANSMISSION Percentages. Solar Transmission Percentages are an extremely simple concept for your customers to understand; no need to get caught up in the difficult explanation of what is a BTU. This meter can work directly with the sun or an artificial source  Glass & Film Sales Demonstration Lamp. The Solar Power & Transmission Meter allows you to effectively sell your products’ performance through live demonstrations. Use this meter to sell your customers up to your high-end products.