YSJ-1812 Electronic Thermometer Ⅰ、technical specifications 1. Temperature range: 0 °C ~ 50 °C / 32 °F ~ 122 °F 2. Temperature resolution: 0.1 ° C 3. Temperature deviation: ±1 °C 4. voltage: 1.5V 5. Working environment: temperature 0 ~ 50.0 ° C, relative humidity ≤ 85% RH, no corrosion, no strong electric radiation. Ⅱ、 the basic functions 1. Celsius / Fahrenheit switching display 2.the highest / lowest temperature memory function Ⅲ、 the operating instructions MAX/MIN button: display memory highest/lowest temperature or clear highest/lowest temperature. Press MAX/MIN in the normal state to switch between display maximum → minimum → current temperature. In this state, press and hold the MAX/MIN button for 2 seconds to clear the displayed maximum/minimum temperature and return to the current temperature display. If there is no operation in the middle, the meter will automatically return to the current temperature display after 8…