Adjustable Height Ruler for Vision Detection.Precision Optic Instrument for Near-Point Check,Adjustment Range Verification

Specifications: Name: Desktop Adjustment Ruler; E Logo: Contains 5 sheets, each featuring 10 sides; Children's Visual Target: Includes 4 pictures with 8 sides; Cross Sight Mark: Available in both single sheet and double-sided formats. Packing List: Desktop Adjustment Ruler *1. Rated voltage (appliances or chargers): AC110-240/50HZ;

• Ergonomic forehead support: The forehead support is ergonomically designed with a sponge cushioning material that conforms to the natural curvature of the forehead, providing comfort during examinations.
• Versatile visual markers: This set includes E-word visual markers w/5 sheets and 10 sides for a variety of inspection purposes. Additionally, it features children's visual markers with 4 sheets and 8 sides designed specifically for those unfamiliar with visual markers. There is also a double-sided cross visual marker for assessing visual function.
• Customizable height: The adjustable height ruler can be tailored to meet different inspection needs, with a maximum height of 338mm and a minimum height of 526mm, ensuring flexibility for various users.
• Comprehensive checking options: This device allows for multiple checks, including near-point assessment, scatter sensitivity evaluation, close-range image fusion tests, adjustment range verification,flexibility analysis, relative adjustment checks, presbyopia reading distance evaluation, and fine-tuning for adjusting both near and far points.
• Extended inspection range: The inspection distance can be adjusted up to 50 cm, and the quick card change feature allows for easy swapping of cards through a simple side insertion into the slotted baffle.