How Long Does Thermometer Last?
Quick Answer
Thermometer lasts 5-10 years when unopened. Once opened, it should be used within 3-5 years.
Shelf Life by Storage Condition
| Storage Condition | Duration |
|---|---|
| Pantry (Unopened) | 5-10 years |
| Pantry (Opened) | 3-5 years |
| Refrigerator (Unopened) | 5-10 years |
| Refrigerator (Opened) | 3-5 years |
| Freezer | Not applicable |
How to Tell If It Has Gone Bad
- Cracks or damage to the casing
- Inaccurate or inconsistent temperature readings
- Corrosion or rust on metal parts
- Leaking liquids (for liquid-filled thermometers)
Proper Storage Tips
- Store in a dry, room-temperature environment away from direct sunlight
- Avoid dropping or subjecting the thermometer to physical shock
- Keep the thermometer clean and disinfected before and after use
Risks of Using Expired Thermometer
Using an expired or malfunctioning thermometer can lead to inaccurate temperature readings, which may result in improper diagnosis or treatment. Damaged thermometers, especially those containing mercury or other hazardous substances, pose a risk of chemical exposure or injury.
Get an Expiration Reminder
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Frequently Asked Questions
How long does Thermometer last?
A typical thermometer lasts between 5 to 10 years when unopened and stored properly, and about 3 to 5 years once opened and in use.
Does Thermometer expire?
Thermometers do not have a strict expiration date but can lose accuracy over time and with damage, so periodic replacement is recommended.
How can you tell if Thermometer has gone bad?
Signs include inaccurate readings, physical damage such as cracks or leaks, corrosion, or inconsistent performance.