Lucky Elf Wrist Blood Pressure Monitor is your powerful guardian for health, it's lightweight, portable, convenient and simple for using, helps you control better your health with the accurate and detailed readings. This product is suitable for testing the whole family of vascular health. No pickup devices within the product, simple operation, anti-interference ability to the outside world. Specifications Display: LCD digital display Cuff circumference: 13.5-21.5cm/5.31-8.46inch Automatic power off: In 3 minutes Measurement range: Pressure: 0-299 mmHg (0-39.9kPa) Pulse: 40-199 pulses/min Accuracy: Pressure: ±3mmHg (±0.4kPa) Pulse: ±5% of reading Storage condition: Temperature: -20°C~+55°C Humidity: Working condition: Temperature: 5°C~40°C Humidity Power source: 2pcs AAA alkaline battery DC. 3V (not included) Attention Before Measuring 1. Avoid speaking or moving body parts while testing. 2. Wait 3 minutes or longer before re-testing. 3. Avoid eating, exercising, and bathing for 30 minutes prior to testing. 4. Sit in a calm environment for at least 5 minutes prior to testing. 5. Do not stand while testing. Sit in a relaxed position while keeping your wrist level with your heart (normally test with left wrist, ). 6. While testing, avoid strong electromagnetic interference such as microwave ovens and cell phones. 7. Test at the same time every day, on the same wrist (normally test with left wrist), in the same position. 8. This blood pressure monitor is not recommended for people with severe arrhythmia. 9. The measurement results will be influenced by various uncertainties. It is recommended that the first measurement data can be ignored and subject to the average value measures.
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