temperature not correct

Do digital thermometers stop working or become less actuate?

Please give examples with different devices (like smart phones or computers).
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David Johnson, CD, MVPOwnerCommented:
The answer greatly depends upon your definition of accurate.  is the reading accurate enough or not.. Electronic components come with accuracy ranges i.e. +/- 10% and the components are rated in an operating temperature range. Over time components age and will change their value, resistors gradually increase in value, capacitors decrease in value.

It also depends upon the design of the particular device. i.e. with a device that goes to 1 decimal place is 3.76 displayed as 3.7 or 3.8 ?  With any measurement one always discounts the lowest significant digit so 3.7 will be +/- .1
They can stop working if there is an electronic failure.  They shouldn't change accuracy significantly over time unless there is a specific problem, such as corrosion on a sensor connection.

The usual sensing device is solid state and there's no good reason for it to drift or to fail.
what problem do you have, and with which device?
answers will vary greatly
rgb192Author Commented:
thanks for describing failure
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