Features 1. Our Prince-180B ECG monitor is portable and easy to operate. 2. It adopts 2xAAA alkaline batteries power supply with low voltage indication. 3. The portable ECG monitor uses a monochrome LCD display with switchable backlight. 4. Optional 3 lead ECG cable is available. 5. PC data management software is used for data transmission and analysis. 6. The portable ECG monitor will automatically power off in 35 seconds if no signal is detected. 7. It performs rapid ECG and HR measurement by recording a 30 second ECG waveform. 8. The ECG monitor has analysis function and can report 17 types of suggestive results. 9. It offers memory storage capacity of up to 300 records, which is expandable by 8GB SD card. 10. Gain mode is available for signal amplification.