Smartphone Thermal Camera Attachment

~$200 typical price

TOPDON TC001 Thermal Camera for Android

A pocket thermal-imaging attachment that plugs into a compatible phone for surface temperature views.

Why it makes a great gift

A fascinating tool for a maker who likes finding heat leaks and exploring how things work.

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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

~$130

GQ GMC-320 Plus Geiger Counter

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

Science NerdsTech Lovers

~$380

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

Tech LoversHomebodies