ECG Monitor is intended for measuring and recording the ECG signal and determining average heart rate. Advanced measuring technology provides steady and accurate ECG waveform in about 30 seconds. Its user-friendly design allows patients to use by themselves at home. Features: Small in size, light in weight, easy to carry with you. One key easy operation, about 30s quick measurement. 2.8" color LCD screen clearly displays ECG waveform and interpretation of results. 17 types of measurement results can be presented. Data storage of 300 waveforms, which can be reviewed, copied, uploaded and deleted. Storage data can be easily uploaded to the computer by the provided USB cable. Adjustable screen brightness, convenient for both day and night. Supports time display and setting. Battery operated, auto shutdown after about 1min idle time to save power. Note: Size and color may differ from the pictures due to manual measurement and different light conditions. Thanks for understanding. Specifications: : Color: Orange Material: ABS Screen: 2.8" Color LCD, 240*160 Channel: 1 Electrode: 3 Metal Electrodes Heart Rate Measuring Range: 30-240bpm, 2bpm or 2% Accuracy Display Scale: 5.0mm/mV 10% Common-mode Rejection Ratio (CMRR): 60dB Waveform Sweeping Speed: 20mm/s 10% Input Loop Current: 0.1A Input Impedance: 5M (single ended) Results: 17 Data Storage: 300pcs Waveforms Data Upload: Data Management Software Power Supply: 2 * AAA Battery (not included) Item Size (without battery): 125 * 70 * 21.5mm / 4.92 * 2.76 * 0.85in Item Weight: 93g / 3.29oz Package Size: 14 * 9 * 6cm / 5.51 * 3.94 * 2.36in Package Weight: 276g / 9.72oz Package List: 1 * ECG Monitor 1 * USB Cable 1 * User Manual (English) Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!