Is thermometer allowed in flight?
James Craig
Updated on June 01, 2026
Correspondingly, is digital thermometer allowed in flight?
Mercury thermometers are strictly prohibited. Alcohol thermometers (with red liquid) is allowed. Electronic thermometer is also allowed. Please note that airport security officers may decline taking an item on a plane if it may cause a threat.
Also Know, can you fly with cleaning products? Many household cleaners are liquids, so they'd be restricted by the 3-1-1 liquids rule for carry-on luggage. In many cases, household cleaners can be easily purchased at your destination instead of bringing them with you, which is a safer choice unless you're sure what is in your products and that it is nonhazardous.
Similarly one may ask, can you take a thermometer in hand luggage?
The airport warns: “Thermometers with mercury are permitted in hold luggage (but not hand luggage) only, if they are carried in a protective case.” Passengers could also be caught out if travelling with writing equipment seeing as ink is a liquid. Anything over 100ml is not allowed onboard, including refills.
Can I take a ballpoint pen on an airplane?
Ballpoint pens, rollerball pens, gel pens and pencils are allowed, as are fountain pens with a single open cartridge in use, but any refills cannot exceed 100ml. Books, puzzles, games and stickers may be taken on board. Hat boxes, sports equipment and wedding dresses all constitute an item of hand baggage.
Related Question Answers
What items are not allowed in checked luggage?
8 Things You Should Never Pack in Your Checked Bag- Never Pack These Items in Your Checked Baggage.
- Matches, Lighters, E-Cigarettes, and Vaping Pens.
- Lithium Batteries.
- Certain Types of Food and Alcohol.