Product size: 11.7 cm * 9.7 cm * 5.9 cm Storage temperature: -20 ~ 50 ℃ Storage humidity: 10% ~ 93% Operating temperature: 5 ~ 40 Operating humidity: 15% ~ 80% Display: LCD digital display Measuring method: pulse scanning method / oscillometric method Measuring range: hypertension / hypotension: 0 mmHg ~ 280 mmHg Pulse: (30 ~ 180) beats / minute Resolution: 1 mmHg (0.1 kPa) Accuracy: ± 3 mmHg (± 0.4 kPa) Pulse: within ± 5% of reading Warm reminder: 1. Please refer to the manual for contraindications or precautions 2. Please read the product manual carefully or purchase and use under the direction of medical personnel Package includes: 1 * blood pressure meter (without battery) Pay attention: Due to manual measurement, please allow slight dimensional tolerances Lighting in photography may cause chromatic aberration compared to real life