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Acme Tornado 636 vs Camp Photon

Weight and specs compared for 2026 — and which one to choose.

Acme Tornado 636 is the lighter option — 17 g lighter than the Camp Photon (59% less weight). If grams matter to you, that is the one to beat.
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Spec Acme Tornado 636 Camp Photon
Weight 12 g · 0.012 kg · 0.03 lb 29 g · 0.029 kg · 0.06 lb
Brand Acme Camp
Category Safety Safety
Acme Tornado 636
12 g

Loud pealess emergency whistle. Standard SAR equipment.

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Camp Photon
29 g

Compact carabiner at 1.02oz. Ideal for alpine and trad climbing.

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Acme Tornado 636 vs Camp Photon: which should you buy?

If saving weight is your priority, the Acme Tornado 636 wins — at 12 g it is 17 g (59%) lighter than the Camp Photon (29 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest safety page, or browse the full gear weight database.

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