Model: 420003 - Quantity: 1 - Color: White + Grey - Material: Plastic - Display screen: 1.7 inch LCD - Measuring range: 0~299mmHg (0~39.9kPa) - Pulse: 40 pulse/minute~200pulse/minute - Measuring method: Intelligent automatic compression and decompression - Blood pressure accuracy: +/-3 mmHg - Pulse accuracy: +/-3% - Power: 2 x AAA batteries (not included) - Suitable for arm circumference: 135mm~195mm - It can memory 60 measuring results. - 3 minutes automatic power-saving function - High accuracy and easy operation. - Life: About 10000 times - Operating temperature: 5'C~40'C - Humidity: 30%~80% - Packing list: - 1 x Blood pressure meter - 1 x English user manual