2 to 5 business days
Accurate measurement: The product adopts the optical principle, the measurement accuracy is controlled at ± 0.2 â2. Simple operation: The product supports one-button temperature measurement3. Convenient reading: The product adopts digital display reading mode and supports backlight design4. High safety performance: The product supports non-contact measurement, which greatly improves safety5. Correction settings: F1 - Unit setting-F1 Function (factory default is degree Celsius) F2- Hint Sound Switch Setup (factory default hint sound on) F3. High fever warning setting-F3 (factory is â 37.5)F4- Backlight setting ( factory default on) F5- Exit Setup Mod When in F1/F2/F3/F4 state, long-press the setting key(setup) for 3 seconds to automatically exit the setting.