980B is a special designed for monitoring forehead temperature range 32℃ to 43 ℃ (89℉to109℉). It has the functions of ambient temperature compensation and self-detection. It requires no contact, no earmuffs, no doubt about cross-infection of the ear canal, and inaccuracy caused by errors in the measurementangleoftheearcanal.
This machine provides a calibration mode
(after removing the battery for 10 seconds, press and hold the backlight button No. 6 for 3 seconds at the same time, and then install the battery. Do not release these two buttons during the battery installation. After the battery is released, the screen displays 00.0 after releasing the two buttons. At this time, the temperature can be increased or decreased by pressing the button No. 2orNo. 3.Afteradjustingthe temperature, unplug thebattery and installthebattery again toenter the normal measurement mode. The increased or decreased temperature indicates that the measured value will increase or decrease accordingly. For example, the measured temperature is 36.5 degrees. After entering the adjustment mode and reduced by 0.5 degrees, the normal measurement mode is restored, and the measured temperature is 36 degrees.) There is an error between the standard measurement value (preferably measured with a mercury thermometer), and you can enter the adjustment mode to make adjustments. Adjustthetemperaturerangeto ± 3℃.