The John Bunn Pulse Oximeter has got its finger on the pulse of medical equipment innovation. Simple, fast, and accurate, this state-of-the-art pulse oximeter is small and lightweight with a multi-directional display so you can use and read it in home, clinical, and EMS situations. Additional Information * Lightweight, pocket-size solution * Provides fast and accurate SpO2 and pulse rate measurements * Multiple-directional display for easy reading * Easy-to-read, large LED color display * 10 adjustable brightness settings * Simple one-button operation * Automatic power-off to conserve batteries * Accommodates wide range of finger sizes from pediatric to adult * Requires two 1.5V AAA alkaline batteries * Operating temperature range: 41° F - 104° F (5° C - 40°C) * Operating relative humidity: 15% to 80% RH * Operating atmospheric pressure range: 10.15 psi to 15.37 psi (70kPa to 106kPa) * Dimensions: 2.28W x 1.26D x 1.34H in. (58W x 32D x 34H mm) * Weight: Approximately 2 oz. (50 g) with batteries * Low battery indicator alarm * Accuracy (% SpO2): 70% - 100% ± 3% * Pulse rate display range: 30 to 235 bpm * SpO2 display range: 70% to 99% * Manufacturer"s warranty included - see Product Guarantee area for complete details * FDA approved, no prescription required * Oxygen saturation and pulse rate measurements * Multi-directional display for easy reading * Lightweight and compact design * Ideal for home, clinical, and EMS situations * Manufacturer"s one-year warranty included