The GT977 combines the popular functions of the UV Sentry Meter (GT973) and the Solar Transmission/Power meter family (e.g., GT968) into a single, easy-to-use unit—so you can demonstrate how film reduces both UV transmission and solar energy in one tool. Ideal for showroom or counter demos and quick field verification. Why Installers Choose the GT977 Two measurements, one meter—show UV transmission and solar transmission/power reduction without swapping devices. Stronger sales demos—quantify protection and comfort benefits in seconds to help customers compare films. Simple, portable design suitable for the counter, showroom, or on-site consultations. Specifications Model: GT977 Product Name: UV and Solar Dual Transmission Meter Measurements: UV transmission percent; solar transmission/energy (per integrated solar function) Use Case: Demonstrations and quick verification of film performance on automotive or flat glass Notes: Combines the feature set of GT973 and GT968 in a single unit