I bought a digital thermometer with a humidity sensor on Ali. I was attracted by its price. Measures temperature from -50 to +110 C with an accuracy of +/- 1 degree. Powered by 1.5 Volts. Two batteries are connected in parallel. I bought it with a remote temperature and humidity sensor, There are thermometers on sale where the sensors are located inside the housing; this must be taken into account when purchasing.
Check: The thermometer shows a temperature of 23.7 C. The liquid thermometer shows approximately 24.5 C and the multimeter shows 24.2 C.
The black part is the temperature sensor. The part with the stripes is the humidity sensor. Make sure that the humidity sensor does not get wet, otherwise it will show a different humidity.
You can switch degrees Celsius to Fahrenheit F. To do this, you need to close two contacts on the board near resistor R4
