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Terraillon Thermo Fast thermometer battery: 2 × AAA

The Terraillon Thermo Fast thermometer takes two AAA 1.5V batteries.

AAA

AAA× 21.5V batteries

Also sold as LR03, E92, MN2400 · AAA details

Source: Terraillon Thermo Fast product page

Varta Longlife Power AAA 8 pack at Amazon for AAA 1.5V alkaline battery (affiliate link, opens in new tab)Energizer Max AAA at Amazon (affiliate link)

Before you swap it

  • Change all two at once. Don't mix old batteries with new ones or one brand with another, since the weakest one in the set drags the others down with it.

Quick answers

What battery does the Terraillon Thermo Fast take?

Two AAA 1.5V batteries.

Is LR03 the same as AAA?

Yes. LR03, E92 and MN2400 are all the same cell as AAA, sold under another name.