SDT 310 digital thermometer

Specifications:
Temperature range: -58 to 300 ℉/-50 to 150 ℃
Resolution: 0.1 °
Accuracy: ± 2 ℉, ± 1 ℃
Sampling time: 1.5 seconds
Battery: 1.5V Battery (Part Number: BA2)

Operation:
Before measurement, please select either Celsius (℃) or Fahrenheit (℉) mode.
Press and hold the "on/off" key in shutdown mode, and the display symbol will alternate between ℃ and ℉.
When the temperature mode you need is displayed on the screen, release the "on/off" button. Change the temperature mode and repeat the above steps.
When measuring with a digital thermometer, remove the protective cover, press the "on/off" button to turn on the power, and then turn on the probe
Insert at least 1/2 of the length into the tested area. Press the "D-H" key to lock the display data. When the "D-H" function is active,
The numbers will flash, press the "D-H" button again to return to normal measurement mode.
Press the 'on/off' button to shut down, and the system will automatically shut down after approximately 35 minutes.
When the battery is low, the "LOB" symbol will flash alternately with the read value.