1. Display with current and previous record;
2. 40 sets large memory;
3. Magnetic probe cover; automatic mode switch between forehead & ear;
4. Multi-function: child mode, object mode, forehead and ear mode;
5. 4-color backlight LCD display with audio &visual alarm function;
6. Mute function;
7. Auto turn off, the battery can be used for more than 2000 times;
20A
