Huanyu Frame Warmer 167-323°F Eyeglass Frame Heater Adjustable Temperature and Huanyu Frame-Less Full Screen Visual Acuity Chart Digital with Remote 21.5inch Bundle

The Huanyu Frame Warmer and Visual Acuity Chart Bundle offers an adjustable temperature feature, providing a faster heat-up time and higher temperatures (167-323°F) compared to ceramic heating. Users should exercise caution to prevent burns during use.

The Huanyu frame warmer provides secondary protection to ensure enhanced safety. Utilizing high-quality heating wire technology, this eyeglasses heater offers a flame-free heat source. To maximize safety, it is recommended to avoid placing the device near open flames during use.

The digital vision chart included in the bundle features a high-resolution LED screen with a small dot pitch (0.294mm), ensuring clear and sharp images. The chart offers high precision, with an adjustable measuring distance from 2m to 6.5m and a maximum precision of 0.1m. The image size varies with the distance adjustment.

Boasting a multifunctional design, the digital visual acuity chart includes features such as automatic playback, vision sensitivity testing, and mirror image functions. The device offers flexible installation options, allowing users to choose between a flat base or wall-mounting.

The frame-less full-screen design of the digital visual acuity chart provides an uninterrupted visual assessment experience, enhancing readability and making it easier for clients to focus, ultimately achieving accurate results.

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