Product Details First grade quality - virgin material usedPurity of mercury 99.99%0 to 300 mm of Hg scale with elegant finishFine numbering and durable background contrast paint for clear visibilitySpecial control valve for perfect pressure dropBest quality cuff for getting excellent gripProven and tested rubber material for Bladder and Bulb to give more durabilitySurface plating adapted to all exposed metal parts to prevent corrosionCuff comes with an extra Velcro fastening for added gripExtra Children size cuff along with Pediatric size to cover full range of arm circumference Desktop model with Metallic paint finish Very popular and useful model for Pediatrician Cuff comes with an extra Velcro fastening for added grip 2 cuffs cover full range of arm circumference in children Also best suitable for OPD of Physicians and GP’s Measurement Unit : mm Hg Resolution : 2mm Hg Measurement method : By Auscultation with Stethoscope Pressure display range : 10 – 300 mm Hg Accuracy : +/- 3mm Hg (Pressure) Cuff size: Cuff size : Pediatric .. 8 cm x 28 cm, Child .. 11 cm x 43 cm Pressurization : Manually using rubber bulb Deflation : Manual control valve