Explanation of the difference in the value of the temperature and humidity sensor

Explain:
At present, there is no national mandatory standard for the numerical deviation of civilian-grade temperature and humidity sensors, but in order to ensure the accuracy of the sensor, each factory has deviation control, so the temperature and humidity sensors of the same product model will not be very different.
Different temperature and humidity sensors are located at different heights, distances, and distances. Coupled with comprehensive reasons such as space tightness and air circulation, there will be numerical deviations;
Differences in design, process capability and algorithm calibration of different manufacturers will lead to certain differences in accuracy;
According to the deviation value of Xiaomi Home's existing smart products after horizontal comparison: (non-mandatory standard, manual test data, for reference only).
Temperature and humidity sensor of the same specification
Temperature ±2℃
Humidity ±6%
Different specifications of temperature and humidity sensors
Temperature ±5℃
Humidity ±15%

For example:
In the same space, two temperature and humidity sensors are located in different positions, and there will be numerical deviations due to comprehensive factors such as space tightness and air circulation;
In the same space, two temperature and humidity sensors are in the same position, and there will be numerical deviations due to the different positions of the temperature and humidity sensors in the equipment for different products, as well as differences in sensor structure, process, design, etc.;
In the same space, the temperature and humidity sensors of two products of the same model are in the same position, and there will be normal differences due to air circulation, calculation differences, etc.

Tip:
Temperature and humidity sensor of the same specification: refers to the temperature and humidity sensor of the same product model;
Temperature and humidity sensors of different specifications: refers to temperature and humidity sensors of different product models.