Handheld Geiger Counter

~$130 typical price

GQ GMC-320 Plus Geiger Counter

A pocket radiation detector that clicks and displays counts per minute from background and nearby sources.

Why it makes a great gift

It makes an invisible part of physics audible, and curious owners spend weeks testing rocks, old glassware and airplane cabins.

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~$120

Hakko FX888DX Digital Soldering Station

A useful bench tool for someone who builds or repairs small electronics.

Tech LoversScience Nerds

~$190

Aranet4 Home CO2 Monitor

Gives a data-minded person a clearer picture of when to ventilate a room.

Tech LoversScience Nerds

~$70

Celestron NexYZ DX Smartphone Adapter Kit

Helps an amateur astronomer save and share views of the Moon and bright planets.

Tech LoversScience Nerds

~$380

A useful piece of home tech for someone curious about their living space.

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