Which platform survives a cold store, and which one only survives a warehouse

A cold store, a boiler room, or an unheated outdoor site is a temperature question before it is anything else, and the published operating range settles it faster than any other spec.

The D1 Max and D1 MaxPro publish the widest range in this catalogue, -20°C to 55°C.

That covers a genuine cold store, a freezer aisle, or a site that swings between a cold morning and a hot afternoon without a heated enclosure. It is the figure that makes an outdoor, unconditioned deployment possible at all for these two platforms.

The D1 Ultra is rated narrower, 0°C to 40°C, which is a warehouse range, not a freezer range.

A site at or below freezing is outside its published operating range, even though it shares a product family and a broadly similar build with the D1 Max. Choosing between the two D1 tiers by payload or price alone, without checking this figure, is the kind of gap a site survey should catch before a delivery does.

The X2 Ultra's -10°C to 40°C sits between the two quadruped figures, wider than the D1 Ultra but nowhere near the D1 Max's range.

A humanoid platform on a covered or lightly outdoor site clears that easily; a genuinely unheated cold store does not.

A platform outside its rated range is not a small risk to accept, it is a warranty and reliability question.

Operating temperature range is a manufacturer figure, not a marketing one, and running a platform below or above it is the kind of decision that shows up later as a support conversation rather than an immediate failure. Confirm the site's actual temperature swing, not just its average, against the platform's published range before ordering.

The temperature question is the first filter, not the last one: it narrows the field before payload, sensors or price ever get compared, and it is a published figure this catalogue does not hide.