💼 Cabin bag
Yes
Digital thermometers: permitted. Mercury thermometers: prohibited.
✈️ Hold (checked)
Depends
Digital: permitted. Mercury: prohibited in all aircraft baggage.
💡 Tip: Digital thermometers are permitted everywhere. Mercury thermometers are prohibited in checked baggage due to hazmat rules — use digital instead.
Related items
Browse all Medical →Based on official TSA guidelines. Rules vary by airline and route — always verify with your carrier before travel. · Rules last verified May 2026.
Report incorrect rule
Was this helpful?