Feature: - Large LCD, panel, and easy-to-read display- Emergency valve design: Rapid deflaton for safety emergency- 128 sets of data storage: Includes data and time- One-Touch Operation: Auto inflation/deflation control- Rapid measurement: Only take 45 secondsSpecification: - Display: 41mm x 47mm TN LCD display- Measurement Method: Oscillometric- Measurement Range: Pressure: 30~ 280 mmHgPulse Rate: 40~ 199 beats/min- Accuracy: Pressure: +/-3mmHgPulse: +/-5% of reading- Memory Capacity: 128 sets of memories- Inflation Mode: Automatic inflation by air pump- Deflation Mode: Automatic deflation by fast & slow valve- Pressure Detection: Piezo-Resistive silicon pressure transducer- Operating Environment: 10C to 45C (50F to 113F)30% to 85% Relative humidity maximym- Operating Environment: -10C to 60C (14F to 140F)10% to 95% Relative humidity maximym- Power Saving: Automatic power-off after idling for 2 minutes- Power Source: Two "AAA" 3V DC batteries (exclusive)- Weight: Approxi. 128g (4.52oz) without batteries- Standard Kit: BP109, Storage case, user's manual, standard color box More Product Features Trademark: HOCA Model NO.: BP109 Standard: CE0434, FDA 510(k) Company: Hoca Medical Microsystem, Inc.