Handy tool that offers the perfect solution for zeroing needles on standard aneroid gauges Note: Although most gauges are calibrated when the needle is resting at zero (circle/oval), this does...
Pediatric vision chart with 10ft and 20ft foot notations only Proportionally spaced (logMAR) lines; line sizes range from 20/125 to 20/8 (6/38 to 6/2.4) equivalent This chart can either be...
Orange Adult (23 - 40cm) For use with most clock aneroids and mercurial instruments Includes ADC's exclusive Adcuffª nylon cuff (#830 series) featuring the Size Guideª marking system Inflation bladder...
Sloan letter near vision card with proportionally-spaced lines; line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent Attached 16-inch (40 cm) measuring cord ensures proper screening distance Printed...