Temperature monitoring for refrigerators and freezers. Refrigerators are a HACCP critical control point. At least once per shift, readings are checked against an external thermometer and the standard for the specific product.
The temperature log for refrigerators and freezers follows the form in Appendix No. 2 to SanPiN 2.3/2.4.4282-26. Checking refrigerator temperatures is the daily minimum. WeSetup warns when the temperature leaves the allowed range and automatically creates a CAPA with the cause, responsible person and correction deadline.

Required fields: Equipment; Required temperature — set once; Readings at the time of inspection; Action taken for deviations. An empty field is equivalent to an incomplete log for an inspector, so use a dash deliberately and include an explanation.
Every shift: make the entry on the day of the event. Do not backdate entries: uniform dates and identical values are precisely how inspectors identify record keeping done only as a formality.
Appendix No. 2 to SanPiN 2.3/2.4.4282-26. Include the regulatory reference on the title page so the inspector can immediately see why the log is kept.
Yes. SanPiN 2.3/2.4.4282-26 does not require paper: the important points are being able to see who made an entry and when, and preventing unnoticed retrospective changes. For an inspection, print the electronic log for the required period.
Inspectors usually request records for the last 12 months, so one year is a practical minimum. Keep logs connected with a food poisoning investigation or a complaint until the proceedings are closed.