Mid · Thermometer

Geratherm Classic (galinstan glass)

≈ €8–12

On 1 of 12 official emergency lists: DEEUNLFRDKFICZUKFEMAARCSENODE1/12

Buy at Amazon

Glass thermometer filled with galinstan instead of mercury. No battery, legal everywhere. Takes 3–5 minutes.

Key specs

Mercury-free glass, no battery.

Power

No battery

Why we picked it

The classic thermometer, legal everywhere.

Trade-offs

Slower (3–5 min); fragile.

Brand

Germany (Geratherm)

Where to buy

Amazon

Part of L1: 72-hour emergency kit.

Some links are affiliate links. No sponsored placements. Prices are approximate. Reviewed 19 October 2026.