A hand-held Pulse Oximeter for convenient spot checking. Build with robust components to withstand harsh and heavy use environments. Perfect for the physician's office, emergency care, hospitals, clinics, diagnostic centers, and home health care. Features: - Intended for spot-check pulse oximetry - Fits into lab coat pocket - NiCad rechargeable battery for easy portability and 12 hours of continual use - Bright LED displays for oxygen saturation and pulse rate - Rugged, water-resistant case withstands shock and vibration Equipment Specifications Oxygen Saturation and Pulse Rate Display: Two 3-digit, 7-segment LED Resolution: SpO2: 1% Pulse: 1 BPM Range: SpO2: 0-100% Pulse: 32-250 BPM Accuracy: SpO2: 100-70% ± 2% 69-60% ± 3% Less than 60% unspecified Pulse: 32-250 BPM ± 2 BPM General Dimensions: 7.5 in L x 3.5 in W x 1.4 in H / ( 19.1 cm L x 8.9 cm W x 3.5 cm H) Weight: 16.0 oz. (453 grams) Power Source Battery Type: NiCad rechargeable Battery Life: 12 hours in continuous operation Power Adaptor: 100 - 250 V AC 50/60 Hz 0.5 A